Description
Enhance the performance and functionality of your BMW G8X M3 or M4 with the MMX Performance Underbody Chassis Brace. Precision-engineered as a direct replacement for the factory underbody brace, this upgrade is specifically designed for vehicles equipped with larger-diameter aftermarket exhaust systems, providing 15mm of additional exhaust clearance while maintaining the factory ride height and ground clearance.
Manufactured from CNC-machined billet 6061-T6 aluminum, the MMX Performance Chassis Brace delivers exceptional strength, reduced weight, and superior durability. Its optimized lightweight design reinforces a critical structural section of the chassis, improving rigidity, stability, and handling during spirited street driving or demanding track sessions.
Compared to the factory stamped steel brace, the billet aluminum construction creates additional clearance beneath the vehicle, reducing the chance of exhaust contact without compromising structural integrity or requiring permanent vehicle modifications.
Designed and tested in the United Kingdom, the MMX Underbody Chassis Brace reflects MMX Performance's commitment to premium engineering, precision manufacturing, and motorsport-inspired performance.
Features & Benefits
- Provides 15mm of additional exhaust clearance
- Maintains factory ground clearance
- Increases chassis rigidity for improved handling and vehicle dynamics
- Precision CNC-machined from billet 6061-T6 aluminum
- Lightweight, high-strength design
- Ideal for vehicles equipped with larger aftermarket exhaust systems
- Direct replacement for the factory underbody brace
- Utilizes original factory mounting points
- No cutting, drilling, or permanent modifications required
- Fully reversible installation
- Designed and tested in the United Kingdom
Specifications
Brand:
- MMX Performance
Product Type:
- Underbody Chassis Brace
Material:
- CNC-Machined Billet 6061-T6 Aluminum
Additional Exhaust Clearance:
- +15 mm
Ground Clearance:
- Maintains Factory Ride Height
Installation:
- Direct Bolt-On
Mounting:
- Factory Mounting Points
Warranty:
- 1-Year Manufacturer Warranty Against Defects
Vehicle Fitment
Fits the following BMW models:
- 2021+ BMW M3 Sedan (G80)
- 2023+ BMW M3 Touring (G81)
- 2021+ BMW M4 Coupe (G82)
- 2021+ BMW M4 Convertible (G83)
Why Choose the MMX Performance Underbody Chassis Brace?
The MMX Performance Underbody Chassis Brace is an ideal upgrade for G8X M3 and M4 owners looking to improve chassis rigidity while accommodating larger aftermarket exhaust systems. Its billet 6061-T6 aluminum construction delivers increased structural strength, reduced weight, and an additional 15mm of exhaust clearance without sacrificing factory ground clearance. With direct bolt-on installation and OEM-quality fitment, it's the perfect addition to any street, track, or OEM+ build.
