Bimmerworld X-pipe impressions
Just installed a custom catless BW x-pipe with 2 extra sets of resonators. With my corsa rear section, this is a perfect setup imo. Zero drone, no rasp, and an exotic tone.
A proper tune is needed to optimize this setup, so I have an Epic Motorsports tune on the way.
I’ve been running this system without a tune, and I’ve found drivability to be fine. No CEL, but some stuttering at high rpm. Also, a slight buzzing/whirring on acceleration. I’ll see if it changes after tuning.
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