Quote:
Originally Posted by 1bad65
It varies from vehicle to vehicle. My last car gave bigger gains with an X-pipe, but this one has bigger gains with an H-pipe. And sound will of course vary. I researched mine before I bought the parts. YouTube clips, dyno sheets, asking around, etc.
And when I say vehicle to vehicle, I dont mean from one 2010 Camaro SS to another 2010 Camaro SS. I mean different models.
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Can you quantify your example of bigger gains with a H pipe? Seeing that a catback offers little to nothing over the stock exhaust, 2-3whp is less than the variation from run to run.