MBRP 3" T304 Stainless Steel Axle Back Exhaust With Dual Carbon Fiber Tips - BMW M240i 3.0L 2017-2021Cruise the highway or hit the track with an MBRP Street Profile exhaust. Its the perfect mix of aggressive sound when youre into the throttle without being obnoxious on long drives. *Cutting of OEM Required For Install* Features: Durable T304 Stainless Steel 4" OD Dual Wall Carbon Fiber Tips Included Moderate Sound Level Eliminates Factory Exhaust Valve, No Simulator Required Up to 25% Increased Flow Over Stock Signature MBRP Styling What's Included: