The ARM S58 Midpipe upgrade is designed to unleash the incredible exhaust sounds from your G80 M3/M4. By removing the secondary catalysts and two middle resonators, the ARM S58 Midpipe substantially improves the sound of your S58 powered BMW. Also, by retaining the OEM muffler, you still have the ability to control the exhaust flaps, allowing you to close them for a more tame volume when you want to be quiet, or open the valves for maximum sound.
Features:
- Exotic Exhaust Sound
- X-Pipe Design
- Fits OEM Underbody Brace
- SS304 Stainless Steel
- Saves 15lbs Over OEM
What’s Included:
- ARM S58 Crossover Pipe (Optional)
- 2x Front Midpipe Sections
- 1x X-Pipe
- 4x Clamps