Supersprint BMW F31 3 Series, F33 4 Series, F34 3 Series & F36 4 Series Stainless Steel Centre Exhaust X4M (F98) ENGINE & PERFORMANCE Includes billet fuel rail for

Includes billet fuel rail for port injection (6 injector setup)

Developed and tested in-house from the ground up since its debut in November 2016 with new features and updates being added regularly makes the bootmod3 platform a custom BMW factory DME tuning solution like no other on the market since

Q0857) is a direct-fit

and improve throttle response

Supersprint BMW F31 3 Series, F33 4 Series, F34 3 Series & F36 4 Series Stainless Steel Centre Exhaust X4M (F98) ENGINE & PERFORMANCE Includes billet fuel rail forThe Supersprint Centre Exhaust is a precision, direct fit stainless steel upgrade engineered for the BMW F31 3 Series, F33 4 Series, F34 3 Series & F36 4 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