BMW · 4 Series / 440i
BMW 4 Series & 440i exhaust program
Valved stainless and TC4 titanium systems for the F32 / F33 / F36 and G22 / G23 / G26 — 420i to 440i, gold and burnt-blue titanium, remote valves, jig-built, pressure tested.
Product catalog
Every BMW 4 Series system we build.
Cat-back / full systems
Don't see your chassis? We develop from scans, drawings or samples — see OEM / ODM & sample builds.