Momentum Motorsports S58 Race Downpipes

BMW G87 M2 | G80 M3 | G82 / G83 M4

Unleash the full potential of your S58.

The Momentum Motorsports S58 Race Downpipes are engineered for maximum flow, faster turbo response, and aggressive sound. Designed specifically for the G8X platform and G87 M2, these race downpipes eliminate the restrictive factory catalytic converters to deliver substantial power gains and a sharper, more exotic exhaust tone.

Built for serious performance enthusiasts who want immediate results.

Performance Gains

• Increased horsepower and torque
• Faster turbo spool
• Improved throttle response
• More aggressive exhaust note
• Significant reduction in backpressure

When paired with a Stage 2 ECU calibration, these downpipes unlock the true capability of the S58 platform.

Construction & Design

• High grade T304 stainless steel construction
• Precision TIG welded for durability
• Mandrel bent piping for smooth airflow
• Integrated flex section for stress reduction
• CNC machined flanges for perfect fitment
• Direct bolt on installation

Built to handle high boost, track abuse, and daily driven power builds.

Fitment

• 2023+ BMW G87 M2
• 2021+ BMW G80 M3
• 2021+ BMW G82 / G83 M4

Compatible with factory and most aftermarket midpipes/exhaust systems.

Sound Characteristics

Expect:

Cold start becomes noticeably louder
Deeper, more aggressive tone under throttle
Pronounced turbo spool and overrun burbles
True race inspired exhaust character

What’s Included

• Left and right S58 race downpipes
• Required hardware

Important Information

For off road and motorsport use only.
ECU tuning is required to avoid check engine light.