06STi REAR DIFFUSER ON TO 05 WRX
14 November 2006, 08:29 PM
#1
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06STi REAR DIFFUSER ON TO 05 WRX
OK, help needed here. Will the aforementioned fit, if it will do I need any special fittings
BTW I have PPP so have the Prodrive back box fitted.
BTW I have PPP so have the Prodrive back box fitted.
14 November 2006, 08:48 PM
#3
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Originally Posted by SivMY05Sti
I'm sure this has been done by Elmer Fudpucker - check his posts out.......
14 November 2006, 09:37 PM
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Hola
The bumper shape shouldn't make any difference,I'm pretty sure they're the same anyhow
..get a diffuser P/No 91225fe000
and a bracket P/No 91285fe000(total cost £83)
maybe one of these too
from Japanparts
If not you will need to drill two holes into your wheel well....some pvc piping to act as a spacer(the ends cut at an angle to compensate for the radius of the inside of the boot)and some M6 coach bolts.
https://www.subarugenuineparts.com/i...r-diffuser.JPG
You will also need to drill 2 holes to attach the bracket...no big deal tho.Its just a thin plate to go thro but it will need weather proofing afterwards.
..Sounds worse than it is really,just take your time lining it up
and theres a few threads on NASIOC about fitting one
hth,Jon
The bumper shape shouldn't make any difference,I'm pretty sure they're the same anyhow
..get a diffuser P/No 91225fe000
and a bracket P/No 91285fe000(total cost £83)
maybe one of these too
from Japanparts
If not you will need to drill two holes into your wheel well....some pvc piping to act as a spacer(the ends cut at an angle to compensate for the radius of the inside of the boot)and some M6 coach bolts.
https://www.subarugenuineparts.com/i...r-diffuser.JPG
You will also need to drill 2 holes to attach the bracket...no big deal tho.Its just a thin plate to go thro but it will need weather proofing afterwards.
..Sounds worse than it is really,just take your time lining it up
and theres a few threads on NASIOC about fitting one
hth,Jon
14 November 2006, 09:49 PM
#6
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Thread Starter
Many thanks Jon for a quick and informative reply
BTW I am paying only £30 for mine
don't know if it is coming with the bracket though.
BTW I am paying only £30 for mine don't know if it is coming with the bracket though.
14 November 2006, 11:54 PM
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Diffusers work by expanding air into a larger space lowering pressure and therefore producing downforce. To work effectively the downward strakes have to be virtually touching the ground so that air can't rush into the area if lower pressure from the sides.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
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15 November 2006, 12:15 AM
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Originally Posted by Chelspeed
Diffusers work by expanding air into a larger space lowering pressure and therefore producing downforce. To work effectively the downward strakes have to be virtually touching the ground so that air can't rush into the area if lower pressure from the sides.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
Is the above more cosmetic or effective?
15 November 2006, 11:43 AM
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Originally Posted by Chelspeed
Diffusers work by expanding air into a larger space lowering pressure and therefore producing downforce. To work effectively the downward strakes have to be virtually touching the ground so that air can't rush into the area if lower pressure from the sides.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
On a Scoobie the diffuser is very small and about a foot off the ground, you will produce a downforce equal to no more than the weight of the plastic device bolted on the back of the car. Save yourself £30 and fit a bag of cement in the boot, you will produce loads more downforce than bolting on a pathetic bit of plastic to the underneath of the boot floor.
Mmmmm...........I'll hazard a guess that its cosmetic mod......
15 November 2006, 12:38 PM
#10
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Originally Posted by SivMY05Sti
Mmmmm...........I'll hazard a guess that its cosmetic mod......
Correctamundo
15 November 2006, 03:26 PM
#12
Originally Posted by wrx300scooby
Correctamundo
We fitted one to a 2005 wrx sl a couple of weeks back,basically the same fitting guide as elmer's,the under bumper lip is the same,and already has two nicely positioned holes in place,
you will need to drill through the underside of your wheel well,we drilled two holes,and the diffuser is nice and secure,the job should take around half an hour if you use the right type of drill bit(which we were not ! DOPE)
easier if you put the car up on a set of ramp's,we had to park the car on a slope so we could get the drill upright under the wheel well
15 November 2006, 04:36 PM
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APR performance in the USA do a very good rear diffuser,ring Simon at RCM,he will give you the info,they make these in GRP and DRY CARBON when you see one you will not want the subaru item.Go to APR Performance - Power by Control look for rear diffusers.
Last edited by Bucko; 15 November 2006 at 04:48 PM.
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