Remus Cat-back System With Integrated Valve - BMW F20 | F21 M135i Alpha N For this we used a

For this we used a double layer main shield with a silver finish on the exhaust side and black on the intake side

Additional 80 hp on a stock vehicle

same track with Wavetrac: the patented cam device in the Wavetrac prevents loss of drive when that inside wheel is unloaded

Racing 100mm

2 kW at 5900 rpm

Remus Cat-back System With Integrated Valve - BMW F20 | F21 M135i Alpha N For this we used aCat Back System for BMW 1 Series F20 F21 and 1 Series F20 LCI F21 LCI consists of: sport exhaust centered for left right system front section front silencer L R tip set with integrated valve. The activation of the valve is carried out using the original actuator via the vehicle onboard electronics. Original tube 80 mm REMUS tube 84 mm Features Aggressive racing sound Shot blasted surface, 100% stainless steel Performance increase, low back pressure