Supersprint BMW F34 3 Series Stainless Steel Front Pipe(Replaces Secondary Catalytic Converter) INSTOCKHOT enhancing both power delivery and

enhancing both power delivery and engine longevity

and B4 chassis

ALPINA B3 (G21) Touring 4x4 (S58 - 462 Hp - models with OPF) 2020 -> 2022 (with valve)

CNC-machined mounting points and brackets for factory-like fitment

Supersprint BMW F34 3 Series Stainless Steel Front Pipe(Replaces Secondary Catalytic Converter) INSTOCKHOT enhancing both power delivery andThe Supersprint Front Pipe(Replaces Secondary Catalytic Converter) is a precision, direct fit stainless steel upgrade engineered for the BMW F34 3 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 assumption