Quote:
Originally Posted by sfi3400
I have heard that H pipes give more torque but the X pipe is better for horse power and breathing?
does any1 here have them and if you do what improvements did it make?
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First of all, neither one "gives" torque, they
allow more torque and horsepower. A correctly designed x-pipe should breath better than an H-pipe.
I did have one case where an H-pipe added an irritating resonance inside the car, over the straight dual exhaust.