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Would be interesting to see if the long tubes power compared to stock headers and TP's or HFC's.
What i'm getting at, is if they make power, but they're replacing easily replaced pipes, unless they make more power than the above combo, they're still not worth it
From what I've been told is that if i get the long tubes instead of the ART pipes it might add another 5-7 more HP going that ways I'll check on it tonite I'll let u know as soon as i gather my info ok
The stock exhaust may not be (much) of a bottleneck on a stock car, but if you open up the headers and remove the cats, you're probably going to need to open up the cat-back, as well.