Sports Series High Flow Catted Downpipes 2021+ M2/M3/M4 S58 Engine 440i Having shorter and less bends

Having shorter and less bends on the intercooler piping will promote better internal flow

Torque gains of 15 wtq average (stock boost) up to over 20 wtq (Software upgrade) (gains will vary based on modifications of your vehicle)

turbo backpressure is significantly reduced

While higher peak horsepower and torque gains are awesome

Introducing our Sports Series 4" High Flow 200 Cell Metallic Catted Downpipes for your 2011-15 X1 s/xDrive28i/20i/16i

Sports Series High Flow Catted Downpipes 2021+ M2/M3/M4 S58 Engine 440i Having shorter and less bendsIntroducing our Sports Series High Flow Catted Downpipes for your twin turbo S58 engine! Fits 2021+ M3 M4 (G80 G82) and 2023+ M2 (G87). Key Features: Made in the USA! Manufactured in house. Now available for the 2021+ BMW M3 M4 & 2023+ M2 S58 Engines! High Flow 200 cell metallic catalytic converter Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Better throttle response and faster turbo