Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

STI exhaust Q

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Old Sep 14, 2004 | 04:27 PM
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STI exhaust Q

is there anyway to modify the stock STI muffler for more exhaust flow (more sound)? like punch thru it like those ol school catalytic
Old Sep 14, 2004 | 07:37 PM
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jus pinching pennies for a green. what exhausts retain that same or similar "STI" tip?
Old Sep 20, 2004 | 04:55 PM
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the cobb catback is pretty stock looking.... just a 90mm tip, not like the 120mm melon shooters.
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