Remus Axle Back System left/right - BMW 3 Series F30 | F31 335i | 4 Series F32 | F36 435i M5 (E39) 550 rpm and torque increases

550 rpm and torque increases of 27

giving you a deeper rumble of an exhaust note compared to stock without any drone

VANOS timing

injection duration and optimisation of injection timing by recalibration of the ECU

Remus Axle Back System left/right - BMW 3 Series F30 | F31 335i | 4 Series F32 | F36 435i M5 (E39) 550 rpm and torque increasesATTENTION: The rear skirt must be trimmed as per the supplied template when using the 086512 1684C and 086512 1684CB tip sets! For standard bumper and M sport option! The activation of the valve is carried out using the original actuator via the vehicle onboard electronics. Features Aggressive racing sound Shot blasted surface, 100% stainless steel Performance increase, low back pressure Light weight construction Perfect shape and fitment Handmade in