Quote:
Originally Posted by Vekke
Oh and remember to take out the rear muffler. It should help a lot.
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I did this on the diesel Golf and replaced it with a straight pipe. I don't have any test data to show if it helped horsepower or mpg but it didn't hurt any. The noise level in the cabin is virtually unchanged. With the turbo and the cat dampening the exhaust pulses it is not loud.