Milltek OPF Back Exhaust - BMW G20/21 M340i & G22 M440i - Cerakote Black Tips - SSXBM1159

Milltek OPF back exhaust system for BMW G20/21 M340i and G22 M440i - direct factory fitment replacement engineered to enhance sound character and visual presence without modification. This system routes exhaust downstream of the OEM particulate filter, preserving emissions compliance while unlocking mid-range response and full-throttle tone refinement.

Constructed from T304L stainless steel with mandrel-bent piping and hand-finished quad black GT-100 tailpipes. Direct OEM hanger compatibility ensures zero-modification installation. Available in resonated and non-resonated configurations to suit street or closed-course driving preferences.

• G20 M340i sedan and G21 M340i touring fitment
• G22 M440i coupe fitment
• T304L stainless, mandrel-bent construction
• Quad black GT-100 black trim tailpipes
• Direct factory fitment - uses OEM hangers
• OPF-compliant (emissions-legal)

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 76.2mm (3.00")
• Fitting time: 2 to 2.5 hours, including removing the factory system
• E-marked for road use

Fitment

• BMW > 3 Series > G20 M340i Sedan inc Xdrive > 2021 and Later
• BMW > 4 Series > G22 M440i Coupe (NAS/ROW Vehicles Only) > 2021 and Later

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.