PLM 交叉排氣管 - BMW G80 G82 M3 M4 G87 M2

Bolted this on when swapping in my downpipes and the fitment was spot on—no fighting with misaligned flanges or hangers, which I half expected. The CAD work paid off because everything lined up with the factory mounts perfectly. Car sounds deeper now with zero drone at highway speeds.

Bolted right up to my downpipes without any wrestling or gap-closing tricks, which tells me the CAD modeling was spot-on from the start. The crossover section clears the underbody plastics cleanly, and the whole install took me about an hour less than I budgeted for.

The precision of the 3D scanning is obvious when you see how perfectly it mates to the factory exhaust points—zero alignment issues during install. The car sounds noticeably deeper and cleaner at high RPM with the downpipes.