B58 Performance Downpipe (Heat Shielded)

A performance-focused upgrade designed to unlock flow and sound from your BMW’s B58 engine. The high-flow design improves exhaust efficiency, delivering a sharper throttle response and a deeper, more aggressive tone while maintaining a clean OEM+ fit.

Constructed from high-quality stainless steel with an integrated heat shield, it helps manage temperatures while ensuring long-term durability under demanding driving conditions. Precision welding and factory-style mounting points allow for a clean, secure fit.

BMW B58 3.0T Models
M240i (F22/F23)
M340i (G20)
M440i (G22/G23)
540i (G30)
740i (G11/G12)

All Apex Design parts are supplied with a 1 year warranty.