Need Help: Mid Pipe vs Down Pipe for N55
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11-20-2012, 02:27 AM
Drives: 2013, Z4/28
Join Date: Jun 2011
Originally Posted by
I went with CP-E because their shop is local. I bought their QuickPower™ midpipe and their axleback. The whole setup wasn't cheap, but I loooooove the sound.
BMW 135i QuickPower™
i did the same as you with cp-e. I added the resonator.
I'm not an expert. But if you change the DP you might have a yellow engine light.
you might have to go with some tune to delete that yellow light.
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