Valved cat-back for B48-powered F30, F31, F32, F33 and F36 320i and 420i models. Factory valve integration means no coding or extra modules - it works straight from your ECU.
Three exit options: AP502B48 (single), AP502NB48 (dual), AP502NQB48-8200CG (quad) - match your bumper without trimming
No drone, no rasp: tuned specifically for B48 torque delivery and throttle response
OBDII Valvetronic remote optional: plug-and-play override for full sound control on demand
Tested on F30 320i and F36 420i: verified gains, zero fitment issues, full xDrive compatibility
