CTS Turbo BMW S58 G80/G82/G87 M2/M3/M3C/M4/M4C Downpipes

CTS Turbo is proud to announce the release of our BMW S58 G80/G82/G87 M2/M3/M3 Competition and/M4/M4 Competition Downpipes. Our stainless steel downpipes allow for faster spool, better transient boost response, higher boost, and great sound.  Our downpipes are the first part of our modular exhaust system and are compatible with factory mid-pipes.  You should expect strong torque gains when paired with appropriate tuning software.  We used CAD simulation to streamline the flow of exhaust gasses and ensure seamless integration with the factory and CTS exhaust components.  Many hours of R&D were spent to ensure a perfect fit, smooth exhaust flow, and excellent sound. Use of Bootmod3 software compatible and is strongly recommended. CEL will illuminate if correct software tuning is not used. Features:

• Durable 304 food-grade stainless steel, 3" or 76mm diameter
• Laser-cut flanges
• Factory-like placement of O2 sensors
• Designed using the latest 3D scanning technology
• LHD/RHD fitment
• Exhaust flow simulated with CAD software to ensure optimal flow routing
• Perfect fit with factory or aftermarket mid-pipes
• Aggressive sound - really makes that S58 scream

Fitment:

• 2021+ BMW S58 M3/M3 Competition
• 2021+ BMW S58 M4/ M4 Competition
• 2023+ BMW S58 M2

Stage 2 software is required to avoid check engine light.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 8 applications

M4

Make	Model	Engine	Years
BMW	M4		2021–2022
BMW	M4 (G80)		2021–2022

M3

Make	Model	Engine	Years
BMW	M3		2021–2022
BMW	M3 (G80)		2021–2022

M4C

Make	Model	Engine	Years
BMW	M4C		2021–2022
BMW	M4C (G80)		2021–2022

M3C

Make	Model	Engine	Years
BMW	M3C		2021–2022
BMW	M3C (G80)		2021–2022

Fitment data last updated: 2026-06-26