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WRX vs STI stock exhaust
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Old 19 Oct 2009, 05:32 PM   #1 (permalink)
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WRX vs STI stock exhaust

Does anyone know if 2007 wrx and sti turbo-back are different ?
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Old 19 Oct 2009, 06:11 PM   #2 (permalink)
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Hi, all OEM or aftermarket exhausts designed for 07 WRX/STi will fit either.
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Old 19 Oct 2009, 06:18 PM   #3 (permalink)
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Re: WRX vs STI stock exhaust

I know that, but one of my friends has changed his STI exhaust and gived to me the stock. If the stock STI is less restrictive that mine, i can put it on my wrx. I will stay on stock exhaust anyway because of my daughters ( 2 and 8 years old ).
What do you think about ?
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Old 19 Oct 2009, 07:13 PM   #4 (permalink)
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Re: WRX vs STI stock exhaust

While the piping is slightly larger in diameter on the STi exhaust, the catalytic converter is larger and more restrictive so any gains are negated.
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Old 19 Oct 2009, 07:19 PM   #5 (permalink)
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Re: WRX vs STI stock exhaust

If i understand corectly, is better to keep my stock exhaust ?
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Old 19 Oct 2009, 07:23 PM   #6 (permalink)
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Re: WRX vs STI stock exhaust

Quote:
Originally Posted by Relu View Post
If i understand corectly, is better to keep my stock exhaust ?
About the only reason to swap out components is to go to the STi axleback muffler which is slightly louder than the OEM WRX unit.
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Old 19 Oct 2009, 07:33 PM   #7 (permalink)
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Re: WRX vs STI stock exhaust

The axleback I had already changed one year ago with an STI one. Not for the sound, but only for the look
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Old 19 Oct 2009, 08:23 PM   #8 (permalink)
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Re: WRX vs STI stock exhaust

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Originally Posted by Relu View Post
The axleback I had already changed one year ago with an STI one. Not for the sound, but only for the look
I have a STi axleback muffler on my WRX for the looks.
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Old 19 Oct 2009, 08:33 PM   #9 (permalink)
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Re: WRX vs STI stock exhaust

Here is mine
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File Type: jpg IMG_5946.jpg (90.8 KB, 21 views)
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Old 19 Oct 2009, 09:58 PM   #10 (permalink)
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Re: WRX vs STI stock exhaust

Nice bud well anything done to engine wise?
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Old 20 Oct 2009, 05:30 AM   #11 (permalink)
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Re: WRX vs STI stock exhaust

The only thing I did is remap.
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