Thread: Test pipes
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      11-27-2012, 11:39 AM   #6
S///TH
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Drives: 2010 Jerez Black e90 M3
Join Date: Oct 2012
Location: Not So Sunny Florida

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Other than the fact that you have to cut the original pipes is there any material difference between intalling a set of "test pipes" vs. purchasing lets say the Challenge Sport X-Pipe?

I realize your can't go back to OEM but there is a significant price difference enough to pay for a tune and then some.