Sorry to comment on such an old thread but what were the outcomes of everyone's venture with the 335is and catted down-pipes and added resonators to the midpipe?
I just went catless down-pipes and it is to raspy for me and am looking to go catted or resonated down-pipes. was looking to see everyone's outcome.
Thanks,
Mark
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2011 E93 - 335is - AW/CR
vrsf 7 FMIC| vrsf DP | COBB
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