Yeah soot is minimal...it's laser etched and super thin, so hardly any deposits.
The Inside of the tips have them, but I have to bend down and be cleaning the //M logo to notice it...
Still owe everyone a dyno...
2012 335i Mineral Gray
M Performance Exhaust/Brakes/Suspension/LSD|Bav Stage 1/AMP||ER CP/IC/DP/OC | Dinan CAI/N55 PWG BIG TURBO|BMWF30.com