Join Date: Jul 2006
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Originally Posted by 9d2TSi
Yes, when people talk about upgrading exhausts for power, they're usually refering to a cat-less one. Since some aftermarket exhaust are available with both catted and non-catted versions, your answer is no. You don't have to go fully cat-less to get better power and sound.
The factory exhaust's is flawed in alot of ways. This is for emissions and sound (noise) mostly, so yes the exhaust is very restrictive for the most part. Not necessarily the cat-back portion, but the downpipe is just terrible from a performance standpoint. The bends suck, there are too many cats in it, and the mouth of the downpipe is well, stupid.
That pretty much sums it up for me.
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