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Old 08-02-2014, 06:37 PM   #1
Scooby Newbie
Member#: 396557
Join Date: Jul 2014
Chapter/Region: NWIC
Location: Arcata CA
2006 Impreza WRX LW

Default Sti exhaust on stock 06 wrx

Still a noob but couldn't find any threads on this just double checking if it's safe to run a stock sti exhaust on my 06 wrx w/o a tune as far as I can tell it should be because they're essentially the same size minus the muffler?

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thatdude58 is offline   Reply With Quote
Old 08-02-2014, 06:43 PM   #2
Purified Dick
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
1995 Legacy LSi
1998 Forester, lifted.


You will be just fine.
Hondaslayer is offline   Reply With Quote
Old 08-04-2014, 05:11 PM   #3
Scooby Newbie
Member#: 378421
Join Date: Jan 2014
Location: NC
2005 Cobb Stg2+ Wrx
Platinum Silver


Should be fine w/o a tune as long as the stock downpipe is still there.

Fwiw I have an Sti catback on my stage 2 05 Wrx. Cobb intake, perrin turbo inlet, Samco ic hoses, Cobb catless up pipe, Cobb catted downpipe to stock Sti catback running Cobb Ap stg2 93 oct map.

I love it. Favorite exhaust I've heard on a Subi. I figure if it flows enough for a 300hp 2.5L Sti, it has to flow enough for my 250hp 2.0L Wrx.
4eat05 is offline   Reply With Quote
Old 08-04-2014, 09:24 PM   #4
Medium Frank
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
2014 Porsche
GT3 (Currently on Fire)


Considering it's 95% the same exhaust, yes you will be fine.
HinshawWRX is offline   Reply With Quote

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