MAD BMW S58 X3M X4M Catted High Flow 200 cell Downpipes

MAD S58 200 Cell Race Catted Downpipes

Designed for the BMW F97 X3M and F98 X4M, MAD S58 200 Cell Race Catted Downpipes improve exhaust flow while delivering a deeper, more aggressive exhaust note.

Increased Flow for Performance-Focused Builds

Constructed from high-quality 304 stainless steel, these downpipes are built to withstand extreme exhaust temperatures and demanding driving conditions. Smooth mandrel-bent piping and 200-cell high-flow catalytic converters reduce restriction, supporting improved horsepower, torque, and throttle response.

The freer-flowing design can provide gains of up to 30 horsepower on stock turbochargers, with additional potential on upgraded turbo setups. It also sharpens the character of the S58 exhaust without introducing excessive drone.

MAD S58 downpipes bolt directly to the factory exhaust system without cutting or welding. They are also compatible with most aftermarket exhaust systems, giving owners flexibility when planning future exhaust upgrades.

These 200-cell race catted downpipes do not include a check engine light guarantee.

Features200-cell high-flow catalytic convertersHigh-quality 304 stainless steel constructionCompatible with right-hand-drive and left-hand-drive vehiclesSmooth bends for maximum airflow without excessive droneUp to 30 horsepower increase on stock turbochargersFlex sections for added durabilitySpot-on bolt-on fitment with no cutting or weldingLifetime warranty against manufacturing defects and fitment issues

For S58 owners seeking greater exhaust flow, a stronger exhaust note, and performance-focused 200-cell catalysts, MAD Race Catted Downpipes provide a direct-fit solution for the X3M and X4M platform.

Race Use Only

This product is not legal for sale or use on pollution-controlled vehicles operated on public roads, highways, or streets. It is intended solely for off-road, race, or closed-course competition use where permitted.

By purchasing this product, you acknowledge that you are responsible for compliance with all applicable emissions laws and regulations. MAD and its affiliates disclaim liability for improper or unlawful use. Use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws.

Please check all applicable laws before purchase and installation.

FITMENT2020+ BMW X3M F972020+ BMW X3M Competition F972020+ BMW X4M F982020+ BMW X4M Competition F98