Supersprint BMW F12 6 Series & F13 6 Series Stainless Steel Front Metallic Catalytic Converter. Left JULY15 The "B-tube" configuration increases the

The "B-tube" configuration increases the heat transfer surface area by approximately 15% compared to traditional tubes

BMW G81 M3 (2023+)

Lowers front by 25-50 mm and rear by 25-50 mm

The KW engineers have developed a sporty yet harmonious basic setup

Supersprint BMW F12 6 Series & F13 6 Series Stainless Steel Front Metallic Catalytic Converter. Left JULY15 The "B-tube" configuration increases theThe Supersprint Front Metallic Catalytic Converter. Left is a precision, direct fit stainless steel upgrade engineered for the BMW F12 6 Series & F13 6 Series. It replaces the restrictive factory component to free up exhaust flow, sharpen throttle response and give your BMW 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 by