Supersprint Alpina E39 B10 Stainless Steel Front Exh. with Metal Metallic Catalytic Converter M135i (F20 & F21)(P) Designed for BMW F20/F21 M140i

Designed for BMW F20/F21 M140i & F22/F23 M240i models

This system mounts up to factory mounting points and is a direct bolt-on

Our Supra headlamp duct allows for the most direct cold air feed possible and significantly helps to reduce heat soak keeping track times consistent

BMW Part Number: 83 51 2 355 290

Supersprint Alpina E39 B10 Stainless Steel Front Exh. with Metal Metallic Catalytic Converter M135i (F20 & F21)(P) Designed for BMW F20/F21 M140iThe Supersprint Front Exh. with Metal Metallic Catalytic Converter Right + Left is a precision, direct fit stainless steel upgrade engineered for the Alpina E39 B10. It replaces the restrictive factory component to free up exhaust flow, sharpen throttle response and give your Alpina a deeper, more purposeful note. Supersprint has been handcrafting performance exhausts in Mantova, Italy since 1955. Every system is designed and validated on the dyno not