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Subaru Impreza Performance Upgrades

28 messages,  Last post on Aug 30, 2009 at 4:37 PM

You are in the Subaru Impreza Forum.

What is this discussion about? Subaru Impreza, Performance Mods, Sedan

Messages Page 2 of 3

#9 of 28 Re: Upgrades [gsuth7435] by paisan

Jul 06, 2008 (10:48 am)

Replying to: gsuth7435 (Jul 04, 2008 3:48 pm)
You will get no performance upgrades on a 2.5RS from any of those things. (Chip, Exhaust, Intake). I've been modding subarus for almost 10 years and it's just not something you want to do, unless you want that ricey sound.
 
-mike

#10 of 28 Exhaust and Intake Mod by harvey192

Aug 06, 2008 (7:19 pm)

Hey guys, i have a 07 impreza 2.5i non turbo and i was just wondering what type of exhaust might give my car a little better exhaust sound (deeper) kind of like the WRX STI and also is a cold air intake mod helpful at all??? Also if i bought an aftermarket muffler (ebay) would it have any effect on my cars performance or any other aspect?

#11 of 28 Re: Exhaust and Intake Mod [harvey192] by paisan

Aug 07, 2008 (4:30 pm)

Replying to: harvey192 (Aug 06, 2008 7:19 pm)
You won't get any performance increase from intakes or exhausts on the 2.5i. You also can't boltup any exhausts from the turbos to the non turbos, you'd need a custom fab on them.
 
You can make it louder but it won't sound like an STi really.
 
Personally, I'd stick with it stock, if you want to actually drive faster, do Brakes, Tires, Suspension that will help you be able to drive it significantly faster.
 
Oh and go to an HPDE event, where you can do on-track driving with an instructor in your car, this is the best mod you can do, and it's universal no matter what car you get in!
 
-mike

#12 of 28 by harvey192

Aug 07, 2008 (9:07 pm)

what about putting a aftermarket muffler only on it, does that void my warrenty at all and will it sound any different or screw up my computer becasue of compression and all that

#13 of 28 Re: [harvey192] by paisan

Aug 08, 2008 (7:53 pm)

Replying to: harvey192 (Aug 07, 2008 9:07 pm)
An aftermarket muffler will probably be louder, won't void your warranty (except on the exhaust system) and won't effect the computer.
 
-mike

#14 of 28 Re: [paisan] by harvey192

Aug 08, 2008 (8:08 pm)

Replying to: paisan (Aug 08, 2008 7:53 pm)
Thats awsome, thanks alot for the help, i really do appreciate it, that sucks that i cant boost the power at all but its not like it cant hold its own. I've pulled off the line with many different cars and most of the time i win. I love this car and everything to do with it, i'll never go from subaru ever. Anyways do you have any suggestions on aftermarket mufflers that might work to produce a better sound?

#15 of 28 Re: [harvey192] by paisan

Aug 08, 2008 (8:18 pm)

Replying to: harvey192 (Aug 08, 2008 8:08 pm)
Hmm, don't know of any specific for the 2.5i, I think it's due to the rotation of the flange on the axle-back. It's rotated on the 2.5i v. the turbo cars. Your best bet would be to take a generic muffler to a shop and have em cut your old flange off and put it on the generic one.
 
-mike

#16 of 28 02 upgrades by cptplt

Aug 24, 2008 (10:23 am)

Mike
 
what would you recommend for an 02 wagon for power upgrades? there used to be all sorts of stuff advertised but I guess since its an old model most places aren't interested anymore. so far I've only put on 17in wheels and a Foresters cup holder in the back !
 
dennis

#17 of 28 Re: 02 upgrades [cptplt] by paisan

Aug 25, 2008 (6:47 pm)

Replying to: cptplt (Aug 24, 2008 10:23 am)
WRX?
 
-mike
Motorsports and Modifications Host

#18 of 28 Re: 02 upgrades [paisan] by cptplt

Sep 04, 2008 (7:50 am)

Replying to: paisan (Aug 25, 2008 6:47 pm)
sorry Mike, yes, for a wrx 02 wagon, MT

Messages Page 2 of 3

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