High-flow 3″ catless race downpipes for the S58 — the same set fits every S58-powered M car, from the G80 M3 through to the G87 M2. Pulling out the restrictive factory catalytic converters drops back pressure sharply — the twin-turbo S58 spools faster, makes more power, and picks up a noticeably harder exhaust note. Expect gains in the region of 22–27 hp and 28–33 lb-ft at the wheels once tuned.
Rather than necking down near the turbos, these hold a full 3″ diameter almost the entire length of the pipe for maximum flow. Hand-crafted from mandrel-bent, TIG-welded SS304 stainless steel with CNC-machined 304 stainless flanges and smooth radius bends. Fits both right- and left-hand-drive cars with no modification required, and Grade 12 mounting hardware is included.
Fits — every S58 M car:
- G80 — M3 / M3 Competition / CS (RWD & xDrive), 2021+
- G81 — M3 Touring / M3 Competition Touring (xDrive), 2023+
- G82 — M4 / M4 Competition / CSL (RWD & xDrive), 2021+
- G83 — M4 Convertible / M4 Competition Convertible, 2021+
- G87 — M2 / M2 CS (RWD), 2023+
Australian-delivered cars are covered. On OPF/GPF cars the particulate filter sits downstream of the downpipes, so the same set bolts straight up — your tuner handles the calibration.
Does not fit the S58 SUVs. The F97 X3 M and F98 X4 M share the engine but run a completely different exhaust routing and need a dedicated downpipe set. Get in touch and we’ll source it for you.
Lead Time & Notes
- Configuration: catless (decatted). A 200-cell high-flow catted version is available on request.
- Install: professional install required.
- Tune: required post-install to realise the power gains. Supporting modifications required.
- Hardware: Grade 12 mounting hardware included.
- Warranty: 6 months — manufacturing defects only.
- Compliance: catless — off-road / motorsport use only.
Ships 1-2 Days
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