This is DEF catless without a doubt. You can hear the turbos spool very easily because there isn't any cats in its way. It literally sounds identical to my E92 335 with RB's I recently sold. And that car was a FBO +75% E85 car making 508whp 491ft-lb's of torque with back end flash and a JB4 G5 ISO. I think it sounds incredible and can't wait till mine gets here so I can start playing with it
and all my neighbors are very cool so no problems in that department
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[SIZE="2"]Crimson Red E92 335i M-sport 6-speed with MHD custom stage 2+ flash only , 40% E85/93 mix,+ HRE P40S wheels, KW Clubsport, M3 sways,+BMW performance CF Mirrors, BMW Performance CF deck lid spoiler,+ CF interior trim, p3 vent boost gauge,+ LUX angel eyes (11.73@124mph on street tires)