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FTP BMW S58 G80/G82/G87 M2/M3/M4 Crossover Exhaust Pipe. 18328468990 (Intermediate pipe)

FTP BMW S58 G80/G82/G87 M2/M3/M4 Crossover Exhaust Pipe. 18328468990 (Intermediate pipe)

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FTP motorsport BMW S58 G80/G82 M3/M3 Competition/M4/M4 Competition Crossover Exhaust Pipe.

BMW OEM Part number: 18328468990


The G80/G82 M3 and M4 utilize a Y-style mid pipe, with both downpipes located onthe right side of the engine.


The left side downpipe connects to a “crossover” pipe that runs beneath the transmission and links up with the mid pipes on the left side. 

Unfortunately,the stock shape of the crossover pipe is oval to create enough clearance-underneath the transmission. 

This alteration from a round tube to an oval causes turbulence within the pipe, leading to a restriction in exhaust flow.


We have developed a replacement crossover pipe that retains the round shape,eliminating the turbulence and restriction caused by the oval design.

In order to avoid engine shaking, we also left a dodge space on the pipe to ensure that the product does not collide unnecessarily with the transmission.




  • Durable304  stainless steel, 3″ or 76mm diameter
  • Laser-cut flanges
  • Designed using the latest 3D scanning technology
  • LHD/RHD  Fitment



  • 2021+BMW S58 M3/M3 Competition
  • 2021+BMW S58 M4/ M4 Competition
  • 2022+BMW S58 M2/ M2 Competition


Emissions Compliance


This crossover pipe does not delete or modify any emissions equipment.  This is the pipe that connects the driver side x pipe with the downpipe, and does not contain any emissions equipment.




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