Quote:
Originally Posted by rxbaker
I also have an e90 with PE installed and I can second this. The e90 version of PE comes with an Xpipe to replace the resonator.
I have also noticed that when running a stock tune my car is much louder and burbles much more (backfires sometimes too when shifting) than when running a procede. It's quite noticeable when switching between Map 0 and Map 1. That could be part of it as well.
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Thanks 4 the feedback. Can u elaborate a little on what exactly a "stock" tune implies? BMW ppk 1? Thank you.