MILLTEK SSXBM1023 Cat-back Twin 90mm GT90 BMW 1 Series M 135i 3&5 Door (F21&F20) ymm_37 The K&N cold air intake

The K&N cold air intake system features a mandrel-bent aluminum intake tube designed to deliver a guaranteed increase in horsepower and torque

DSAF visors feature is an integrated double screen anti-fog insert (DSAF) into the shield which creates an air-barrier between the outer and inner shield to eliminate interior fogging

F90) 530 i xDrive 249 / 183 09/16 REAR T8079SP2001 24561 D1473 PREVIEW BMW 5 (G30

25 Charge Pipe Kit BMW M2/M3/M4 S55

0 hours and reuses the stock bolts

MILLTEK SSXBM1023 Cat-back Twin 90mm GT90 BMW 1 Series M 135i 3&5 Door (F21&F20) ymm_37 The K&N cold air intakeDescription MILLTEK SSXBM1023 Cat back Twin 90mm GT90 BMW 1 Series M 135i 3&5 Door (F21&F20) The Cat Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired increase in exhaust volume or a more aggressive tone. Manufactured from 304L aircraft grade stainless steel, these systems are built to withstand harsh