Milltek Equal Length Cat-Back Exhaust - BMW F80 M3 F82 M4 - Polished Tips - SSXBM1146

Direct factory replacement cat-back exhaust system for BMW F80 M3 and F82 M4 (non-convertible). Hand-finished T304L stainless steel construction with mandrel-bent piping and polished tailpipe trims. Equal-length design delivers the signature aggressive tone and maximum volume character across the full RPM range, with dyno-proven gains and OEM+ fitment using factory hangers and mounting points.

Engineered for closed-course driving and track use. Made from T304L stainless steel with precision CNC-formed collectors and hangers. No modification to factory fuel tank or suspension required. Available in resonated and non-resonated configurations to suit your preferred acoustic character.

• Equal-length primaries for linear throttle response and aggressive full-load tone
• T304L stainless steel construction with hand-finished welds
• Polished stainless steel tailpipe trims
• Direct bolt-on installation - uses OEM hangers and mounting points
• Does not fit convertible (F83) models
• Dyno-tested for measurable power gains and engineered exhaust tone

Milltek cat-back systems are engineered for serious M-car enthusiasts seeking real performance gains, precise sound engineering, and the build quality of hand-finished British stainless steel manufacturing.

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

Specifications

• Pipe diameter: 70mm (2.76")

Fitment

• BMW > 3 Series > F80 M3 & M3 Competition Saloon (Non OPF/GPF Models Only) > 2014 to 2018
• BMW > 4 Series > F82/83 M4 Coupe/Convertible & M4 Competition Coupe > 2014 to 2018

• 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.