Quote:
Originally Posted by Brettd122
Hey guys, I have a 2011 335xi with bmw ppk and was wondering what the best downpipe setup would be that will not throw codes/CEL. I'm planning on getting the bmw performance exhaust and was wondering if catted dp's would be my best option? or should i go catless with an o2 sim? thanks
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In terms of performance they are all the same( by that i mean catless DP)
Just get one that has good reviews that it fits well and does not drone.
VRSF and AA are perfect examples
Skip the catted DP.