Supersprint Alpina E36 B6 Stainless Steel Connecting Pipes Kit - for OEM Manifold S5 - B9 (2017+)(S) The factory S58 airbox is

The factory S58 airbox is designed to balance noise reduction

MHC LDN SP1 Carbon Fibre Front Splitter

Whether navigating daily street driving or pushing limits on the racetrack

BMW F82 M4 Coupe (2014–2019

Supersprint Alpina E36 B6 Stainless Steel Connecting Pipes Kit - for OEM Manifold S5 - B9 (2017+)(S) The factory S58 airbox isThe Supersprint Connecting Pipes Kit Right Left for OEM Manifold is a precision, direct fit stainless steel upgrade engineered for the Alpina E36 B6. 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 by assumption