MO
Milltek Large Bore Downpipe Pair | BMW F80 M3 F82 M4
SKU: SSXBM1030
Parts
Documents
Description
Milltek Large Bore Downpipe Pair with Hi-Flow Sports Catalysts for BMW F80 M3 and F82 M4. Direct bolt-on upgrade fabricated in T304L stainless steel with mandrel-bent construction. Larger diameter than OEM reduces backpressure and increases exhaust scavenging efficiency, delivering measurable performance gains and refined sound character when paired with a Milltek cat-back exhaust system.
Hand-finished T304L stainless construction with CNC-formed flanges and OEM-style hangers. Hi-Flow Sports Catalysts maintain emissions compliance while maximizing flow. Stage 2 ECU remap required for optimal results. Installation requires two lambda sensor extensions (BMW part 18307851168, available from any BMW dealer). Uses factory bolt points—no welding or modification required.
Fitment Details
- BMW F80 M3 (2014-2018) with S55 engine
- BMW F82 M4 (2014-2018) with S55 engine
- Requires Milltek cat-back exhaust system for complete integration
- Not compatible with factory M Performance exhaust
Fits Milltek Cat-Back.
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Key Facts
| Pipe Diameter | 76.20 |
| 0 hours to fit (including removing OE system) | |
| Race Product | Yes |
| EMarked | No |
System Fitment List
Shipping Information
This system ships in 1 box.
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