Milltek Large Bore Downpipe Pair - BMW F87 M2 Competition - SSXBM1093

Milltek Large-Bore Downpipe Pair with Hi-Flow Sports Catalysts for BMW F87 M2 Competition. This turbo-back system replaces the OE primary catalysts and OPF/GPF with dual 200 CPSI high-flow cats, engineered to increase exhaust flow and unlock performance when paired with Stage 2 ECU remap.

Fabricated in T304L stainless steel with mandrel-bent construction and CNC-formed catalyst housings. Hand-finished welding and assembly in the UK. Direct bolt-on fitment to OEM mounting points—no modification required. Stage 2 software calibration mandatory for proper operation and emissions compliance.

Key Specifications

• Material: T304L stainless steel, mandrel-bent
• Catalyst: 2 — 200 CPSI high-flow sports cats
• Fitment: BMW F87 M2 Competition (S55B30 turbo engine)
• Compatibility: Requires Milltek Cat-Back system
• ECU Requirement: Stage 2 remap (OPF/GPF delete function)
• Installation: Direct factory fitment, OEM hangers

Measurable gains in flow efficiency over OEM restrictive designs. When combined with a Milltek Cat-Back exhaust, this downpipe system delivers engineered tone character and dyno-proven performance.

Fits Milltek Cat-Back.

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

Specifications

• Pipe diameter: 70mm (2.76")
• Fitting time: 3 to 3.5 hours, including removing the factory system
• Off-road / competition use only. Not legal for use on public roads in the US.

• 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.