BMW S58 4" Single Midpipe & Under Brace (G80 G81 M3, G82 G83 M4 & X3M X4M LCI)

Upgrade your S58-powered BMW with the SLN Performance 4" Stainless Steel Single Mid Pipe, the latest evolution of SLN's mid-pipe design for the G80/G81 M3, G82/G83 M4 and LCI F97 X3M / F98 X4M. Unlike the earlier half-oval designs, this is a true single 4" mid pipe – delivering maximum exhaust flow, a deeper, cleaner tone and a significant reduction in the raspy resonance the S58 is known for.

Manufactured from the highest-quality 304 stainless steel and 100% TIG welded, it bolts directly to your OEM or aftermarket downpipes and rear section for a straightforward, no-compromise fitment.

Features

• True single 4" design for maximum flow and power
• Deeper, cleaner exhaust note with dramatically reduced S58 rasp
• Integrated extended under-brace for added chassis rigidity
• 100% TIG welded from the highest-quality 304 stainless steel
• OEM-spec ball flanges, brackets and mounts for direct fitment
• Non-resonated for the most aggressive soundtrack

Compatible Vehicles

• BMW G80 M3 Saloon & G81 M3 Touring incl. Competition (2021+)
• BMW G82 M4 Coupe & G83 M4 Convertible incl. Competition (2021+)
• BMW F97 X3M & F98 X4M LCI (2021+)

EU / OPF cars will need OPF readings turned off when fitting this mid pipe, via an ECU tune / DME unlock or coding. Please contact us for recommended installers.

The use of de-cats, sports cats and the removal of OPF readings is for off road / motorsport use only and may prevent your vehicle from passing an MOT test. Only EC type-approved components are legal and fit for road use.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.