Dinan High-Flow X-Pipes for 2018-2023 M550I XDRIVE - D660-0080
Part Number: DNN-D660-0080
Crossover Pipes, X-Pipe, Stainless Steel, Natural, 3 in. Diameter, BMW, Kit
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Estimated Ship Date: Oct 27, 2026 Would you rather pick it up?
Overview
Dinan High-Flow X-Pipes
Dinan high-flow X-pipes delivers a deeper tone and a more aggressive note, along with a noticeable increase in volume. Coupled with the associated Dinan exhaust, the sound is further perfected into an aggressive growl that harkens back to the Dinan E9x M3 racing middle exhaust. Rightly so as the same custom X that was used in that application is implemented on the new F8x chassis for that perfect mix of exotic undertones and raw aggression. Unlike a stamped X-pipe that is so common in the marketplace, the Dinan "X" pipes are thoughtfully designed for maximum flow characteristics and by themselves are works of art.
Dinan X-pipes remove the factory center section after the secondary catalytic converters, including the large resonator. In its place you will have straight-through mandrel-bent 2.75 in. T304 stainless steel tubing and the custom "X" for better flow, and an improved throaty sound. kits come complete with mounting hardware, OE-quality clamps, and flanges for simplified installation.
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