BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW G42 M240i xDrive B58 3.0L

G42 M240 Performance Valved Cat-Back Exhaust

Unleash the true potential of your M240 with Turner Motorsport’s precision-engineered Cat-Back Exhaust, designed specifically for the B58 engine. From sound and style to pure performance, this exhaust system transforms your driving experience with an exhilarating soundtrack and unmistakable visual flair.

Engineered for performance, this exhaust system replaces the M240’s stock faux exhaust tips with striking quad 3.5" real tips. Made from premium 1.25mm T304 stainless steel, this cat-back exhaust offers superior durability, corrosion resistance, and a sleek look. Integrated valve control lets you adjust the exhaust tone to suit your driving mode, creating a refined, balanced note in comfort mode and an aggressive roar in sport mode. Turner’s unique muffler design maximizes flow when the valve is open, delivering pure, unrestrained sound and performance on demand.

Key Exhaust Features:

Authentic Quad Tips: Upgrade from the stock imitation tips to real, polished quad tips that bring motorsport aesthetics to your M240. Valve-Controlled Sound: The factory valve control allows for sound customization—subtle in comfort mode, powerful in sport mode. Durable Construction: Built from high-grade T304 stainless steel for maximum durability and resistance to the elements. Optimized Flow Design: True 3.0" piping from the downpipe to the muffler, designed without a resonator to keep exhaust flow unrestricted. Performance You Can Feel

Every aspect of the Turner cat-back exhaust is built with the driver in mind. The mandrel-bent, stainless steel piping ensures smooth airflow, while the strategically placed slip joints provide the perfect alignment and adjustability for a seamless, factory-like fit. The result? An unmistakable exhaust note and a substantial power boost.

What’s Included:

3.0" front exhaust section compatible with factory or aftermarket downpipes Lightweight, free-flowing midsection for maximum sound and performance gains Valved rear muffler for adjustable sound profiles Quad 3.5" optional exhaust tips for an aggressive rear profile Valve extension harness and all clamps/hardware for easy, bolt-on installation G42 M240i Aluminum Skid Plate

BMW’s newer high-powered engines, like the B58 and S58, require efficient cooling—but space constraints mean the oil cooler sits dangerously low and exposed. Protect this crucial component with Turner Motorsport’s heavy-duty skid plate. Constructed from 3/16" thick 5052 aluminum, this skid plate shields your oil cooler from debris and road impacts that could lead to severe engine damage. Unlike the factory plastic belly pan, Turner’s skid plate offers unmatched protection without compromising weight, aerodynamics, or cooling efficiency.

Designed to deflect debris while preserving airflow, this skid plate includes flared air channels to maintain cooling performance. It installs easily with factory hardware—no drilling or modification needed—and features a sleek black powder coat finish that’s both durable and stylish.

Skid Plate Benefits:

Enhanced Protection: Protects against rocks, debris, and other hazards that could damage your oil cooler. Factory-Compatible Installation: Bolts directly onto your car with no modification needed. Aerodynamic Design: Preserves factory aerodynamics with cooling vents for optimal airflow to the oil cooler. Durable Construction: Made from 5052 aluminum with a black powder-coated finish for superior strength and longevity. Equip your M240 with Turner Motorsport’s Cat-Back Exhaust and Aluminum Skid Plate and experience a new level of performance and protection—your BMW deserves nothing less!