Quote:
Originally Posted by rcracer78
isn't the stock cat-back tubing already mandrel bent and the same size tubing as the aftermarket cat-backs? Why not just save your money and purchase an axle-back?
Also, how does an x-pipe help performance?
Please excuse my lack of knowledge. That's why I've reading these forums so much.
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Aftermarket will be better where the bends are than the factory. You will have some weight savings over stock.. better sound, more free-flowing.
Stock exhausts are quieter because of baffling in mufflers.
The X-over helps to balance the pulses from left bank/right bank, cancel some noise, and help smooth out the exhaust sound. It is a good thing...