Dinan resonator delete with Fabspeed muffler bypass. No drone. Stock cats, it would probably be too loud with aftermarket cats. Very loud on cold start, but then settles down. When I had just the resonator delete, the exhaust difference was only really noticeable in sport+.. 15% louder and 15% more burbles. With dinan resonator delete and fabspeed bypass its 45% louder than stock, 30% more burbles (this is all sport+ mode with m mode). In quiet mode, the combo is 25% louder than stock with 20% burbles.
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M2 LBB/6MT/VFstg2/ V1 stealth/ JRC valve delete/Dinan/
Fabspeed/Wagner/ER/Eibach/UCP/RTD
RA Evo X/WhalenTuned/AMS/ETS/UR/AEM/Swift/RRM/VIS/ID
E46 330ci --> S54 M3 xplant vzv 3bananas (retired)
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