| CGM_WRX | 02-02-2006 04:49 PM |
[QUOTE=typer_126]My 2004 STi had the appropriate holes already present in the rear pinch seam. No drilling required. I did have to supply my own bolt hardware however.[/QUOTE]
Same goes for my 05 WRX.
Same goes for my 05 WRX.
| CGM_WRX | 02-02-2006 04:50 PM |
[QUOTE=BIGSKYWRX]Say would it be too much trouble to post a pic of where the holes are located- I may as well get them in the exact spot intended :)
TIA[/QUOTE]
Are you using the Cusco kit?
TIA[/QUOTE]
Are you using the Cusco kit?
| BIGSKYWRX | 02-02-2006 08:11 PM |
nope- I've got the oe brackets (which look like they are going to be a bit of pain to orientate correctly)- that's why it'll be doubly important to get the rear lined out correctly.
| CGM_WRX | 02-02-2006 08:16 PM |
[QUOTE=BIGSKYWRX]nope- I've got the oe brackets (which look like they are going to be a bit of pain to orientate correctly)- that's why it'll be doubly important to get the rear lined out correctly.[/QUOTE]
Oh okay. Sorry, I haven't looked in this thread in a very long time. If no one has gotten anything by then I can get some pictures this weekend but I am using the Cusco kit so the only help I could provide would be the bracket next to the bumper pinch weld.
Oh okay. Sorry, I haven't looked in this thread in a very long time. If no one has gotten anything by then I can get some pictures this weekend but I am using the Cusco kit so the only help I could provide would be the bracket next to the bumper pinch weld.
| BIGSKYWRX | 02-02-2006 08:53 PM |
pinch weld would help (if no one else posts it up) :)
| USCTrojan4JC | 02-02-2006 09:59 PM |
Mike, make sure you look earlier in the thread when I mentioned that the bracket I bought from Jamie @ subarugenuineparts.com didn't work in conjunction with the Cusco bar. AFAIK, no drilling should be necessary with the Cusco bar and respective brackets. No drilling was necessary to get it all onto my 2004 WRX Sedan!
God bless,
Loren
God bless,
Loren
| BIGSKYWRX | 02-02-2006 10:05 PM |
I definitely am going to need to drill at least two holes- my 04 wagon doesn't have the hoes on the rearward pinch weld/seam that appears many other models do- no biggie- I just want to insure it's aligned properly :)
| akinasdevil | 02-03-2006 01:57 AM |
[QUOTE=BIGSKYWRX]nope- I've got the oe brackets (which look like they are going to be a bit of pain to orientate correctly)- that's why it'll be doubly important to get the rear lined out correctly.[/QUOTE]
The 3 OE brackets are a bit of a pain to line up, just make sure you take your time with them.
The 3 OE brackets are a bit of a pain to line up, just make sure you take your time with them.
| USCTrojan4JC | 02-03-2006 02:11 AM |
[QUOTE=BIGSKYWRX]I definitely am going to need to drill at least two holes- my 04 wagon doesn't have the hoes on the rearward pinch weld/seam that appears many other models do- no biggie- I just want to insure it's aligned properly :)[/QUOTE]
Well, Mike. IF you get the Cusco bar and the brackets that go with it, you don't need to drill at all. It sounds like you just got the diffuser, OEM bracket, and nuts & bolts. Is that correct? If that's the case, you'll probably have to drill. There are also three pieces you can get that will go on the underside of the spare tire compartment to help you with the drilling.
I sure hope this helps!
God bless,
Loren
Well, Mike. IF you get the Cusco bar and the brackets that go with it, you don't need to drill at all. It sounds like you just got the diffuser, OEM bracket, and nuts & bolts. Is that correct? If that's the case, you'll probably have to drill. There are also three pieces you can get that will go on the underside of the spare tire compartment to help you with the drilling.
I sure hope this helps!
God bless,
Loren
| Jpapania | 02-03-2006 06:24 AM |
[QUOTE=GMooreFan1]Well, Mike. IF you get the Cusco bar and the brackets that go with it, you don't need to drill at all. It sounds like you just got the diffuser, OEM bracket, and nuts & bolts. Is that correct? If that's the case, you'll probably have to drill. There are also three pieces you can get that will go on the underside of the spare tire compartment to help you with the drilling.
I sure hope this helps!
God bless,
Loren[/QUOTE]
BigSky you should not need to drill into the rear bumper. I just installed everytyhing on my 04 wagon and there was no drilling for the rear bumper. I used the cusco kit for everything else. Check here:
[url]http://forums.nasioc.com/forums/showthread.php?t=920579[/url]
Unfortunately I did not shoot picture of those rear holes, but here is what you are looking for. One is oval in shape, the other is circular. The are locacted right onthe lip of the sheet metal. In this cuco pic I have circled the holes where the bracket installs. There obviously have the bolts arlready end them, but hopefully you can see where I am talking about.
[IMG]http://i7.photobucket.com/albums/y276/jpapania/pic-3.jpg[/IMG]
I sure hope this helps!
God bless,
Loren[/QUOTE]
BigSky you should not need to drill into the rear bumper. I just installed everytyhing on my 04 wagon and there was no drilling for the rear bumper. I used the cusco kit for everything else. Check here:
[url]http://forums.nasioc.com/forums/showthread.php?t=920579[/url]
Unfortunately I did not shoot picture of those rear holes, but here is what you are looking for. One is oval in shape, the other is circular. The are locacted right onthe lip of the sheet metal. In this cuco pic I have circled the holes where the bracket installs. There obviously have the bolts arlready end them, but hopefully you can see where I am talking about.
[IMG]http://i7.photobucket.com/albums/y276/jpapania/pic-3.jpg[/IMG]
| BIGSKYWRX | 02-03-2006 09:34 AM |
So the Cusco set comes w/ a completely different rear bracket? I have two holes in the pinch weld- maybe 2-3" apart- these definitely do not line up w/ the oe bracket.
Also is that piece coming down to where you circled come w/ the kit? I don't have that piece on my car either.
Also is that piece coming down to where you circled come w/ the kit? I don't have that piece on my car either.
| Uncle Scotty | 02-03-2006 11:51 AM |
Mike....I believe that there is the(too common) belief that all of these cars are the same, which we know is not the fact....even the same MY varies
The aft attach bracket should be a subaru part available with the diffuser. It has 4 holes....2 on each flange.....one flange has close set holes, the other has holes that match the aft 2 holes in the diffuser.
The aft attach bracket should be a subaru part available with the diffuser. It has 4 holes....2 on each flange.....one flange has close set holes, the other has holes that match the aft 2 holes in the diffuser.
| BIGSKYWRX | 02-03-2006 02:46 PM |
Yeah I've got the oe rear bracket (and hardware) mates up to the diffuser fine- my 04 wagon just does not have the pre-drilled holes in the pinch seam that it appears many of the other models do.
| kunfuzion | 02-03-2006 04:49 PM |
anyone running an angled exhaust that had to trim the diffuser?
| USCTrojan4JC | 02-03-2006 09:30 PM |
Mike, what Jpapania and I are saying is that if you have the set of Cusco brackets in the pink circle in the picture below, you will not need to drill. Bear in mind that he has a 2004 WRX Wagon and I have a 2004 WRX Sedan. The bracket in the upper portion of the picture is where the diffuser is bolted to the bumper. This bracket [I]takes the place of[/I] the OEM bumper bracket.
[IMG]http://img.photobucket.com/albums/v300/supremeej20/dufu_t.gif[/IMG]
You can see this bracket in the upper portion of the picture below.
[IMG]http://www.napsusa.com/Nukabe/pictures/stabalizerbar1.jpg[/IMG]
Much of this is from post #335: [url]http://forums.nasioc.com/forums/showpost.php?p=12146117&postcount=335[/url]
Does this make sense?
God bless,
Loren
[IMG]http://img.photobucket.com/albums/v300/supremeej20/dufu_t.gif[/IMG]
You can see this bracket in the upper portion of the picture below.
[IMG]http://www.napsusa.com/Nukabe/pictures/stabalizerbar1.jpg[/IMG]
Much of this is from post #335: [url]http://forums.nasioc.com/forums/showpost.php?p=12146117&postcount=335[/url]
Does this make sense?
God bless,
Loren
| BIGSKYWRX | 02-03-2006 10:27 PM |
Yup that makes sense- that's what I was asking above -does the Cusco piece come w/ it's own unique rear bracket- the answer appears yes :)
| Jpapania | 02-03-2006 11:28 PM |
[QUOTE=BIGSKYWRX]Yup that makes sense- that's what I was asking above -does the Cusco piece come w/ it's own unique rear bracket- the answer appears yes :)[/QUOTE]
You are correct. I updated my install instructions to include this, but here is the part number for the cusco brackets:
diffuser stay
672 487 S
Cusco brackets for mounting diffuser
unfortunately you can only order the two together so you would have one bracket you woulld not need (the one that mounts to the cusco bar and diffuser). I do apologize I thought the subaru OEM bracket would use the same hole as the cusco one.
You are correct. I updated my install instructions to include this, but here is the part number for the cusco brackets:
diffuser stay
672 487 S
Cusco brackets for mounting diffuser
unfortunately you can only order the two together so you would have one bracket you woulld not need (the one that mounts to the cusco bar and diffuser). I do apologize I thought the subaru OEM bracket would use the same hole as the cusco one.
| USCTrojan4JC | 02-04-2006 03:35 AM |
[QUOTE=BIGSKYWRX]Yup that makes sense- that's what I was asking above -does the Cusco piece come w/ it's own unique rear bracket- the answer appears yes :)[/QUOTE]
It depends on where you purchase the Cusco bar from. I believe Jpapania was able to get it all together. Being the sometimes impatient person that I am, I ordered the Cusco bar from Vividracing.com but it was just the bar without the brackets. My installer, Steve of Aerosim Research, Ltd. ([url]http://www.aerosim-research.com[/url]) has a contact with someone in the Cusco office in Torrance and was able to order me the bracket individually. Naturally, we found this out the hard way after we installed the bar and Steve realized the I didn't have the brackets needed. After Steve got the brackets, he was able to easily finish the install and that was all she wrote! The only thing now is I have one OEM bracket I need to get rid of because Jamie said the rear diffuser parts are SOP and not returnable (understandably so...we had opened the bag for the OEM bracket too so it was "even more unreturnable").
I hope this helps!
God bless,
Loren
It depends on where you purchase the Cusco bar from. I believe Jpapania was able to get it all together. Being the sometimes impatient person that I am, I ordered the Cusco bar from Vividracing.com but it was just the bar without the brackets. My installer, Steve of Aerosim Research, Ltd. ([url]http://www.aerosim-research.com[/url]) has a contact with someone in the Cusco office in Torrance and was able to order me the bracket individually. Naturally, we found this out the hard way after we installed the bar and Steve realized the I didn't have the brackets needed. After Steve got the brackets, he was able to easily finish the install and that was all she wrote! The only thing now is I have one OEM bracket I need to get rid of because Jamie said the rear diffuser parts are SOP and not returnable (understandably so...we had opened the bag for the OEM bracket too so it was "even more unreturnable").
I hope this helps!
God bless,
Loren
| Jpapania | 02-04-2006 09:56 AM |
Loren,
I ran into the same issue as you, except I had not opened my OE rear bracket so I took it back. I highly recommend the guys at [url]www.rallysportdirect.com[/url]. They were super helpful and can order the parts individually for you or they have the full kit. I called them on the phone and they knew everything I needed down to the correct Subaru bolts.
I ran into the same issue as you, except I had not opened my OE rear bracket so I took it back. I highly recommend the guys at [url]www.rallysportdirect.com[/url]. They were super helpful and can order the parts individually for you or they have the full kit. I called them on the phone and they knew everything I needed down to the correct Subaru bolts.
| CGM_WRX | 02-05-2006 11:46 AM |
BIGSKYWRX:
From reading your recent posts I am under the impression you have the same holes in the pinch weld that everyoen else does. Do you still need pictures of this area? I can still go out and take some this morning if needed but don't want to be taking things apart if you got it figured out. Just let me know. :)
From reading your recent posts I am under the impression you have the same holes in the pinch weld that everyoen else does. Do you still need pictures of this area? I can still go out and take some this morning if needed but don't want to be taking things apart if you got it figured out. Just let me know. :)
| BIGSKYWRX | 02-05-2006 11:56 AM |
^ the only thing I've really figured out is the Cusco kit comes w/ it's own rear bracket- not the same one as oe and is mounted differently (it appears it is actually mounted above the pinch weld-assuming that black triangularly piece is part of it).
Also that 06's may come w/ pre-drilled holes in the pinch seam.
Were yours pre-drilled in your 05? If so I'd like to see pics as my 04 definitely does not come pre-drilled for use of the oe rear bracket.
Thanks
Also that 06's may come w/ pre-drilled holes in the pinch seam.
Were yours pre-drilled in your 05? If so I'd like to see pics as my 04 definitely does not come pre-drilled for use of the oe rear bracket.
Thanks
| CGM_WRX | 02-05-2006 12:15 PM |
Mine was pre-drilled but I am using the Cusco kit so I don't think pictures of mine are going to help but I'll take some anyway.
| BIGSKYWRX | 02-05-2006 12:52 PM |
By pre-drilled I mean right on the pinch seam itself- the oem bracket has two mounting points that ~ 11" apart where they need to mount on the pinch seam.
Thanks
Thanks
| CGM_WRX | 02-05-2006 01:07 PM |
[QUOTE=BIGSKYWRX]By pre-drilled I mean right on the pinch seam itself- the oem bracket has two mounting points that ~ 11" apart where they need to mount on the pinch seam.
Thanks[/QUOTE]
Yep, the holes the Cusco bracket mounts to are right on the part of the pinch seam that is (wider/taller I guess) than the rest of the seam. As described earlier one round hole and one oblong hole about 3-4 inches apart. I'll have pics up before the end of the day.
Thanks[/QUOTE]
Yep, the holes the Cusco bracket mounts to are right on the part of the pinch seam that is (wider/taller I guess) than the rest of the seam. As described earlier one round hole and one oblong hole about 3-4 inches apart. I'll have pics up before the end of the day.
| BIGSKYWRX | 02-05-2006 01:15 PM |
OK- yeah I have those two holes :) (which are obviously not the correct ones ofr the oe rear bracket)
I'd like to see a closeup of how the Cusco bracket is installed- thanks
I'd like to see a closeup of how the Cusco bracket is installed- thanks
| Jpapania | 02-05-2006 01:33 PM |
[QUOTE=BIGSKYWRX]OK- yeah I have those two holes :) (which are obviously not the correct ones ofr the oe rear bracket)
I'd like to see a closeup of how the Cusco bracket is installed- thanks[/QUOTE]
I will check and see if I have any pics of it. I can tell you that the holes on the Cusco bracket are even shapped to mach the ones on the rear of the car (oval and circle). Amazingly well thought out and idiot proof kit, that is why I did it :lol:
Could you drill holes in the OE bracket to match or is it no where close?
I'd like to see a closeup of how the Cusco bracket is installed- thanks[/QUOTE]
I will check and see if I have any pics of it. I can tell you that the holes on the Cusco bracket are even shapped to mach the ones on the rear of the car (oval and circle). Amazingly well thought out and idiot proof kit, that is why I did it :lol:
Could you drill holes in the OE bracket to match or is it no where close?
| MD04WRX | 02-05-2006 02:31 PM |
Just wanted to add my 2 cents. I installed the rear defuser on my 04 wrx. I bought all the oem brackets and bolts from the local Subaru dealer for $87.60 (diffuser, 3 front bracket, one rear bracket, and 7 bolts). The rear bracket required me to drill 2 holes in the pinch weld area. After I bolted in the rear bracket, I attached the diffuser and marked the floor where the 3 holes in the diffuser were. To avoid welding and removing the factory undercoat, I drilled three holes in each front bracket. I scuffed the brackets and painted them so they would not rust. I then drilled & riveted the three brackets
to the floor. Everything bolted up fine. It took about 1 hour (but I had a full size lift which made things very easy). The only thing I still want to do is undercoat the front brackets to match the rest of the floor. FYI there is one
advantage to this (other than the cost). If you have a angled exhaust, you can move the diffuser to the right ( a little off center) for some extra clearance if needed.
to the floor. Everything bolted up fine. It took about 1 hour (but I had a full size lift which made things very easy). The only thing I still want to do is undercoat the front brackets to match the rest of the floor. FYI there is one
advantage to this (other than the cost). If you have a angled exhaust, you can move the diffuser to the right ( a little off center) for some extra clearance if needed.
| BIGSKYWRX | 02-05-2006 03:25 PM |
that's a good idea- riveting vs welding :)
| CGM_WRX | 02-05-2006 08:30 PM |
Crappy pictures but you get the idea.
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00268.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00269.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00270.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00268.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00269.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v147/EKhatch/NASIOC/DSC00270.jpg[/IMG]
| BIGSKYWRX | 02-05-2006 09:41 PM |
Thanks! :)
| CGM_WRX | 02-05-2006 10:17 PM |
[QUOTE=BIGSKYWRX]Thanks! :)[/QUOTE]
Yeah no problem. If you can't make out what is in the pictures I can try and get better ones in the morning. It was getting dark and I didn't want to take the whole thing off so that was the best I could do.
Yeah no problem. If you can't make out what is in the pictures I can try and get better ones in the morning. It was getting dark and I didn't want to take the whole thing off so that was the best I could do.
| BIGSKYWRX | 02-05-2006 10:33 PM |
Those work fine :) Now I need to figure out if I should go the Cusco route or not???
| Jpapania | 02-06-2006 02:30 PM |
[QUOTE=BIGSKYWRX]Those work fine :) Now I need to figure out if I should go the Cusco route or not???[/QUOTE]
I would give [url]www.rallysportdirect.com[/url] a call. I think just the brackets are like $40, but I could be wrong. If you have not already drilled holes in your wagon, I highly recommend just order the cusco bar and everything as in theory it will also tighten up the rear of your car a little.
I am still jealous you have the other 06 STI underbody pieces installed by the way ;)
I would give [url]www.rallysportdirect.com[/url] a call. I think just the brackets are like $40, but I could be wrong. If you have not already drilled holes in your wagon, I highly recommend just order the cusco bar and everything as in theory it will also tighten up the rear of your car a little.
I am still jealous you have the other 06 STI underbody pieces installed by the way ;)
| BIGSKYWRX | 02-06-2006 02:42 PM |
Yeah- I said screw it and ordered the bar (and brackets) :D
| Jpapania | 02-07-2006 09:31 PM |
[QUOTE=BIGSKYWRX]Yeah- I said screw it and ordered the bar (and brackets) :D[/QUOTE]
There you go :D I was really happy with the kit, make sure to search and use my install guide. Hopefully it will help.
There you go :D I was really happy with the kit, make sure to search and use my install guide. Hopefully it will help.
| BIGSKYWRX | 02-19-2006 09:41 PM |
Installed it today- the kit is top notch- fitment was perfect, everything very designed and well made :)
| Bishop | 02-19-2006 09:49 PM |
[QUOTE=BIGSKYWRX]Installed it today- the kit is top notch- fitment was perfect, everything very designed and well made :)[/QUOTE]
mike,
who did you pick everything up from?
mike,
who did you pick everything up from?
| BIGSKYWRX | 02-19-2006 10:11 PM |
the diffuser and hardware I got from Jamie, the Cusco brace/brackets I got from rallysportdirect.com
| USCTrojan4JC | 02-19-2006 11:53 PM |
[QUOTE=BIGSKYWRX]Installed it today- the kit is top notch- fitment was perfect, everything very designed and well made :)[/QUOTE]
So Jpapania and I were correct, right, Mike? No drilling needed! :)
God bless,
Loren
So Jpapania and I were correct, right, Mike? No drilling needed! :)
God bless,
Loren
| Bishop | 02-20-2006 12:23 AM |
[QUOTE=BIGSKYWRX]the diffuser and hardware I got from Jamie, the Cusco brace/brackets I got from rallysportdirect.com[/QUOTE]
thx!!
thx!!
| BIGSKYWRX | 02-20-2006 09:55 AM |
[QUOTE=GMooreFan1]So Jpapania and I were correct, right, Mike? No drilling needed! :)
God bless,
Loren[/QUOTE]
No drilling w/ the Cusco piece- plenty of drilling (or welding) w/o it :D
God bless,
Loren[/QUOTE]
No drilling w/ the Cusco piece- plenty of drilling (or welding) w/o it :D
| Jpapania | 03-05-2006 07:48 AM |
[QUOTE=BIGSKYWRX]No drilling w/ the Cusco piece- plenty of drilling (or welding) w/o it :D[/QUOTE]
See despite what my ex-girlfriend said I am not a "no good lying cheat." :lol:
See despite what my ex-girlfriend said I am not a "no good lying cheat." :lol:
| RooRunner | 05-02-2006 12:52 AM |
I hate to bring this thread up again but I am lookin into adding the [I]side diffusers[/I] and cannot find any information on them. I want to eventually install the entire under-aero kit onto my 02 wrx. Any additional information on these pieces?
| Bishop | 05-02-2006 12:57 AM |
[QUOTE=RooRunner]I hate to bring this thread up again but I am lookin into adding the [i]side diffusers[/i] and cannot find any information on them. I want to eventually install the entire under-aero kit onto my 02 wrx. Any additional information on these pieces?[/QUOTE]
bigskywrx did a write up. pm him.
bigskywrx did a write up. pm him.
| drees | 05-02-2006 02:31 AM |
Here's his thread on how to install the STI underbody aero side panels on ClubWRX:
[url=http://www.clubwrx.net/forums/showthread.php?t=129842]STI under aero bits[/url]
[url=http://www.clubwrx.net/forums/showthread.php?t=129842]STI under aero bits[/url]
| BurschiK | 06-07-2006 01:33 AM |
Did anyone who has not used the 3 front brackets take a picture of the holes which has to be drilled into the trunk? As I have seen yesterday these holes are exactly on the rounded part of the spare tire sheet :confused:
Greetings from Vienna, Austria
Greetings from Vienna, Austria
| semaj | 06-07-2006 02:58 AM |
Does the '06 2.5i floorpan have the same brackets on the bottom of the spare tire well as the STi, or do I need to drill the holes like the older models???
| palpullero | 06-07-2006 09:08 AM |
[QUOTE=MD04WRX]Just wanted to add my 2 cents. I installed the rear defuser on my 04 wrx. I bought all the oem brackets and bolts from the local Subaru dealer for $87.60 (diffuser, 3 front bracket, one rear bracket, and 7 bolts). The rear bracket required me to drill 2 holes in the pinch weld area. After I bolted in the rear bracket, I attached the diffuser and marked the floor where the 3 holes in the diffuser were. To avoid welding and removing the factory undercoat, I drilled three holes in each front bracket. I scuffed the brackets and painted them so they would not rust. I then drilled & riveted the three brackets
to the floor. Everything bolted up fine. It took about 1 hour (but I had a full size lift which made things very easy). The only thing I still want to do is undercoat the front brackets to match the rest of the floor. FYI there is one
advantage to this (other than the cost). If you have a angled exhaust, you can move the diffuser to the right ( a little off center) for some extra clearance if needed.[/QUOTE]
Almost same here. Got all 3 OEM brackets, rear bracket, bolts and diffuser from SubaruGenuineParts.com. Welding is out of the questions due to complexity and the fact that the underbody is aluminum and brackets are steel (tough to weld). I used a drill press and made 4 holes on each of the steel brackets. I installed the rear bracket and mounted the diffuser and made marks where the diffuser holes touched the underbody. Then I lined up the brackets' big holes with the mark and made 4 marks for each bracket exactly where I would drill the 4 holes for the brackets. I drilled small holes from the bottom where I made the 4 marks for the brackets and then finished drilling them from inside the car. Before I drilled all the holes though, I installed one bracket, measured the next bracket and proceeded, just to make sure everything was correct (measure twice, cut once ;) ). After I drilled all the holes, I out everything together to see how it fit - perfect. Took everything down, coated the steel brackets with gasket RTV, bought stainless-steel metric bolts, washers, and nuts, and installed the steel brackets. Coated all the bolts, washers, and nuts with RTV from inside and the bottom. On the inside, I cut strips of heavy-gauge electrical tape (the ones used in 15KV lines!), and covered the heads of the screws with it, and then coated the tape with RTV so its sides would adhere to the metal and seal the screw heads in and at the same time protect the spare tire from getting any abrasions from the screw heads. After all that, the only thing left was to mount the diffuser, which fit like a glove. Took me a couple of hours during several days (about 3 or 4), but it looks great, it is sturdy as heck, and well protected from the elements. Hope this helps.
to the floor. Everything bolted up fine. It took about 1 hour (but I had a full size lift which made things very easy). The only thing I still want to do is undercoat the front brackets to match the rest of the floor. FYI there is one
advantage to this (other than the cost). If you have a angled exhaust, you can move the diffuser to the right ( a little off center) for some extra clearance if needed.[/QUOTE]
Almost same here. Got all 3 OEM brackets, rear bracket, bolts and diffuser from SubaruGenuineParts.com. Welding is out of the questions due to complexity and the fact that the underbody is aluminum and brackets are steel (tough to weld). I used a drill press and made 4 holes on each of the steel brackets. I installed the rear bracket and mounted the diffuser and made marks where the diffuser holes touched the underbody. Then I lined up the brackets' big holes with the mark and made 4 marks for each bracket exactly where I would drill the 4 holes for the brackets. I drilled small holes from the bottom where I made the 4 marks for the brackets and then finished drilling them from inside the car. Before I drilled all the holes though, I installed one bracket, measured the next bracket and proceeded, just to make sure everything was correct (measure twice, cut once ;) ). After I drilled all the holes, I out everything together to see how it fit - perfect. Took everything down, coated the steel brackets with gasket RTV, bought stainless-steel metric bolts, washers, and nuts, and installed the steel brackets. Coated all the bolts, washers, and nuts with RTV from inside and the bottom. On the inside, I cut strips of heavy-gauge electrical tape (the ones used in 15KV lines!), and covered the heads of the screws with it, and then coated the tape with RTV so its sides would adhere to the metal and seal the screw heads in and at the same time protect the spare tire from getting any abrasions from the screw heads. After all that, the only thing left was to mount the diffuser, which fit like a glove. Took me a couple of hours during several days (about 3 or 4), but it looks great, it is sturdy as heck, and well protected from the elements. Hope this helps.
| Bolster | 10-08-2006 05:46 PM |
I installed the diffuser a couple of days ago, using the guide above ^^^. It worked fine. I only used two of the three brackets that go under the spare tire. I would strongly recommend double and tripple-checking everything before drilling. I drive on the highway a lot and noticed a nice improvement in stability, especially in a crosswind, or when a semi-truck passes me going the opposite direction.
Last night, I put the side-pieces in, but have not had a chance to drive on the highway and see if they make a difference. A big thank-you to [B]BIGSKYWRX[/B] for the writeup on ClubWRX. :)
Last night, I put the side-pieces in, but have not had a chance to drive on the highway and see if they make a difference. A big thank-you to [B]BIGSKYWRX[/B] for the writeup on ClubWRX. :)
| WRXDriftR | 11-19-2006 04:12 PM |
[img]http://web.njit.edu/~cdm4/WRX%20Pics/RearDiffuser.JPG[/img]
finally :)
finally :)
| chimchimm5 | 11-19-2006 08:34 PM |
Do the STi diffuser and side underpanels increase the road noise? I read in a post in another forum that they act like resonators which amplify the road noise sound through the floor.
Anyone's testimony on how these things affect cabin noise?
Anyone's testimony on how these things affect cabin noise?
| evilimpdrvr | 11-19-2006 09:40 PM |
just buy the kit and diffuser from jscspeed.com for 05 MY and older.
| BIGSKYWRX | 11-19-2006 11:25 PM |
I haven't noticed any increased noise w/ my wagon- the wagon does have a little more noise than the sedan due to the open hatch- but the diffuser added no extra
| PARANOID56 | 11-20-2006 12:33 PM |
[QUOTE=palpullero;14056648] Welding is out of the questions due to complexity and the fact that the underbody is aluminum and brackets are steel (tough to weld)[/QUOTE]
umm, nope. the floor pan is not aluminum. its all steel, so welding it is faily easy. Even so, i still chose to bolt mine on also, as i didnt want to mess with the undercoating.
[IMG]http://www.camotoy.com/subaru/images/reardiffuser/reardiffuser4.JPG[/IMG]
umm, nope. the floor pan is not aluminum. its all steel, so welding it is faily easy. Even so, i still chose to bolt mine on also, as i didnt want to mess with the undercoating.
[IMG]http://www.camotoy.com/subaru/images/reardiffuser/reardiffuser4.JPG[/IMG]
| semaj | 11-20-2006 01:30 PM |
Looks good Paranoid...factory brackets FTW
| PARANOID56 | 11-20-2006 01:45 PM |
and painted lime green, for the FTW :D :D
Shane
Shane
| o2sys | 11-24-2006 02:59 AM |
does the cusco lower bar serve more than just holding the diffuser? does it act as anything else but?
| BIGSKYWRX | 11-24-2006 10:33 AM |
It's a brace between the two sway mounts, it may help a tiny bit, but there shouldn't be a lot of movement between the mounts as is
| chimchimm5 | 11-30-2006 01:56 AM |
From this pic, it looks like the diffuser has 5 holes for bolts
[IMG]https://www.subarugenuineparts.com/images/sti-rear-diffuser.JPG[/IMG]
... and this whole thread (I read all 17 pages a couple times already) seems to only talk about 4:
- 2 near the sway bar (either 2 of 3 metal brackets on the spare tire well, or the cusco brace with bracket)
- 2 on a bracket bolted to the rear bumper
But the 3rd of 3 brackets is for the 5th hole. It appears that cusco or not, you need the 3rd bracket on the tire well for this 5th middle hole. Correct?
Or are people just leaving this 5th hole unbolted?
BTW, any of your guys rallyx? I'm concerned the diffuser and side underpanels are gonna get messed up doing dirt fun.
[IMG]https://www.subarugenuineparts.com/images/sti-rear-diffuser.JPG[/IMG]
... and this whole thread (I read all 17 pages a couple times already) seems to only talk about 4:
- 2 near the sway bar (either 2 of 3 metal brackets on the spare tire well, or the cusco brace with bracket)
- 2 on a bracket bolted to the rear bumper
But the 3rd of 3 brackets is for the 5th hole. It appears that cusco or not, you need the 3rd bracket on the tire well for this 5th middle hole. Correct?
Or are people just leaving this 5th hole unbolted?
BTW, any of your guys rallyx? I'm concerned the diffuser and side underpanels are gonna get messed up doing dirt fun.
| WRXDriftR | 11-30-2006 02:04 AM |
i just left the 5th middle hole unbolted. 4 is enough for a 1 pound piece of plastic i think. i used 3/8" bolts up front with huge washers :)
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