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XTREME -> RE: Just Purchased Evo 9 (3/21/2006 1:39:45 PM)
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quote:
ORIGINAL: XTREME Okay, I'm getting the injen intake w/IC pipe and the Perrin Cat Back Exhaust and downpipe. I have one question with this. That means that you are keeping your cat then or do they say the downpipe will replace it? If it keeps the cat then the exhaust probably isnt worth the money. Your better off buying an entire turbo back system like megan. No, if you replace your downpipe your original cat-back system is still on the car. If you keep the original cat-back system and replace your downpipe then you still will get some gains in horsepower, however the gains will not be as good as they would with an aftermarket cat-back system and downpipe.
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