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Old 09-30-2008, 09:19 PM   #1
Un0RiGiNaL
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Default Does a stock 04+ sti exhaust fit NA model

my exhaust is ugly and the STI exhaust looks pretty sexy. i dont think it will fit though because the wrx/sti has an uppipe and a downpipe that connects to turbo/headers and etc and the NA version doesnt
questions

will a full sti exhaust fit my 07 impreza? do you have to do some modding?

does it add any gains compared to the ****ty impreza exhaust with a rusted 1 inch tip

i might have answered the question myself
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Old 09-30-2008, 09:53 PM   #2
bcWRX-02
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The full STi exhaust obviously won't because you don't have a turbo for the DP to mount to. I think the catback does. But I'm not 100% sure. You would see minor gains from adding an aftermarket catback. Heres a link to a dyno test of a bunch of different catbacks. They all see gains of approx 10hp. These are on a WRX, but you would still experience some gains.

http://www.turbomagazine.com/tech/02...lts/index.html
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Old 09-30-2008, 10:00 PM   #3
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well i might just replace the axleback or the catback with an sti one because not only do i have no space in the garage to leave the old exhaust, but itll be cheaper and itll look good
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Old 09-30-2008, 10:10 PM   #4
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http://washingtondc.craigslist.org/n...861433536.html

is that worth it? i can bump him down probably to 250

and its legal right?
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Old 09-30-2008, 10:24 PM   #5
Xigent
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Axleback will fit, but I believe you have to rotate the flange.
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Old 09-30-2008, 10:28 PM   #6
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Quote:
Originally Posted by Xigent View Post
Axleback will fit, but I believe you have to rotate the flange.
will the link i posted fit? it says for 02-06 but i think it should
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Old 10-01-2008, 01:36 PM   #7
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bump.
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Old 10-01-2008, 01:42 PM   #8
antho!
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i have an sti catback on my ts wagon (2.5 NA), the flange from cat to midpipe is rotated 90 degrees, the mid pipe is about 3 or 4 inches shorter, but the hangers fit perfectly, anyone who knows how to weld can help you make it fit

this looks like just the rear section, you can get a muffler place to make you a custom mid pipe, but yeah i got mine for like $100 so good deal
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