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I am about to buy thre GReddy cat back next week. And I have not herd to much about it, is was wanting to know if there is a major diffrece you can feel or just a minor differce.Just want to know if I am going to waste my money on nothing[IMG]i/expressions/face-icon-small-confused.gif[/IMG]

 
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there is never really going to be a big difference with just exhuast. it all works hand in hand. headers, intake, exhaust. if thats the only thing you have don't expect more than 4 or 5 hp. to be honest with you i felt a bigger jump with my aem cai.

 
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there was some talk back when that it caused a hp loss...
and it's pretty big if you do a search...

but other than that ive heard a lot of raves from those who own it....

me, I'd spend the dough on an apexi custom job....

 
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You MIGHT feel a little difference but youll really be able to tell with the Header catback and intake...its worth the money!!!

 
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is the greddy evo exhaust out for the coupe yet?

 

YES

 
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I already have the aem cold air intake.And after i got my calt back i as going to get a header, but dont know of a good one to get!