SLN S58 4.0" Single Midpipe with Under-Brace – BMW G80/G81 M3 & G82/G83 M4
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DESCRIPTION
The SLN S58 4.0-inch single midpipe replaces the compatible factory midsection with a true single-pipe design and includes an extended under-brace. It is designed for the UK BMW G80/G81 M3 and G82/G83 M4 applications below.
Part number: SLN_S58_MID_4.
Standard or resonated?
This is the standard, non-resonated version. The SLN S58 4.0-inch resonated single midpipe adds an integrated resonator and is intended for a deeper tone with less volume and aggression than this version. Both listings cover the G80/G81 M3 and G82/G83 M4 applications below and include an extended under-brace.
Key details
- True 4.0-inch single-pipe design.
- 304 stainless-steel construction.
- TIG-welded assembly.
- Extended under-brace.
- OEM-style brackets and mounting points.
- Deeper exhaust tone with reduced S58 rasp.
UK fitment
- BMW G80 M3, 2021+.
- BMW G81 M3 Touring, 2022+.
- BMW G82/G83 M4, 2021+.
Before ordering
Check your chassis, model year and existing exhaust configuration against the fitment listed above. If the exhaust has already been modified, contact SLN with those details to confirm the connections before ordering.
DISCLAIMER
Where applicable, the use of de-cats, sports cats and removing OPF/GPF systems is for off-road/motorsport use only. Using these parts may prevent your vehicle from passing an MOT test. Only EC type-approved components are legal and fit for road use.
SHIPPING & WARRANTY
Free UK shipping on all orders. In-stock orders are dispatched Monday–Friday. Please refer to the live dispatch estimate above for the current estimated dispatch day. Tracking is provided once your order is dispatched.
Warranty coverage varies by product and manufacturer. Please contact us if you need confirmation of warranty coverage before ordering. Your statutory rights are unaffected.