Crossover Exhaust Pipe for BMW S58 G80/G82 M3/M4

The CTS Turbo Crossover Exhaust Pipe, also known as the intermediate pipe, is engineered to optimize exhaust flow for the BMW S58 G80/G82 M3/M3 Competition/M4/M4 Competition. The factory Y-style mid-pipe includes a crossover pipe that runs beneath the transmission. Due to clearance constraints, the stock crossover pipe is oval-shaped, which leads to exhaust turbulence and restricted flow. This CTS Turbo replacement pipe utilizes a consistent round tube design to eliminate these restrictions, promoting smoother exhaust gas movement and potentially increasing horsepower and torque. Constructed from durable 304 food-grade stainless steel, this crossover pipe features a 3" (76mm) diameter and laser-cut flanges. It was designed using advanced 3D scanning technology and its exhaust flow was simulated with CAD software to ensure optimal routing. The pipe is compatible with both Left-Hand Drive (LHD) and Right-Hand Drive (RHD) configurations. It replaces OE part number 18328468990. Fitment is specific to 2021+ BMW S58 M3, M3 Competition, M4, and M4 Competition models. Crucially, this crossover pipe is NOT COMPATIBLE WITH AFTERMARKET SINGLE MIDPIPES. Ensure your vehicle's existing midpipe configuration is compatible before installation.