Downpipe + Cat 500001013 Wagner Tuning for BMW 1/3/4 Series F3x, M135i F20/F21, M235i F22

Wagner Tuning performance part: Competition downpipe with 300-cell sport catalytic converter, designed by Wagner Tuning for BMW F-Series 6-cylinder N55 engines built from July 2013, intended exclusively for motorsport use.

The original N55 downpipe restricts exhaust flow leaving the turbo. Designed using CAD, the Wagner Tuning Competition downpipe replaces the original part with a 76 mm stainless steel tube fitted with a 300-cell sport catalytic converter. Back pressure is reduced, the turbo runs cooler, and the engine gains torque and responsiveness.

Technical specifications:

• 76 mm diameter, for improved exhaust flow
• Stainless steel 1.4301 (304 stainless), for long service life and excellent corrosion resistance
• 300-cell sport catalytic converter
• 2 O2 sensor bungs
• 118 mm flange
• CAD design, for precise fitment
• Lightweight: 4 kg
• Reduced back pressure and lower heat load on the turbo
• Plug & play installation, direct replacement for the original part (BMW part no. 18328602882)

Compatible (N55 engine, from 07/2013): BMW M135i / M135i xDrive F20 / F21; M235i / M235i xDrive F22; M2 F87 N55 (not compatible with the M2 Competition); 335i / 335i xDrive F30 / F31 / F34; 435i / 435i xDrive F32 / F33; X3 M35i F25 LCI (from 2014); X4 M35i and X4 M40i F26 (from 07/2014)

Engine calibration: a fault may be logged by the ECU.

Intended use: this part is intended exclusively for motorsport use on closed circuits. It is not street legal, and fitting it to a registered vehicle driven on public roads is prohibited.

Important: Please verify this part's compatibility with your vehicle (year, engine displacement, and engine code) before ordering.