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Thread: how much hp do you get out of catback exhaust for a 08 civic si?, a full exhaust?

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02 Jan 2009, 07:31 pm

iammonkeyking_90 iammonkeyking_90 is offline

iammonkeyking_90 is offline

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how much hp do you get out of catback exhaust for a 08 civic si?, a full exhaust?

any recommendations for a catback

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