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Catbacks will be available aftermarket with the top quality ones most likely around the same price, but many should be avaiable for less with good quality. All catbacks add roughly the same hp, but sound varies greatly.
I expect intakes to be avaiable for much less than $450, and will be equal quality and as much hp gain.
Shorty headers should be avaiable for much less also, adding about the same hp. $1000 is more along the price of a high quality long-tube which will add a lot more power, but these are not emissions legal in many states.
Based on past experiences and my goals, I'll be going aftermarket for all my mods.
Last edited by JJ#48Racing; 02-26-2009 at 11:17 AM.
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