Join Date: Oct 2004
Location: Long Island, NY
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Dual exhaust with a cross over pipe is better for performance.
One other misconception about performance exhaust is the
pipe diameter. These big 3 inch pie systems are overkill for a small
block. Loud noise doesn't always mean better performance.
If you want to see some seat of the pants performance from an exhaust
upgrade headers will make a mucher bigger difference than a cat back
system. I read in one of the posts that if you run your car with the
factory cat back system off , you only gain 4 rw hp. I dont think that
buying an $800 exhaust system to gain a portion of that 4hp isn't worth
There is another forum on LS7gto.com and some people were complaining
about how loud the kits they bought made their cars.