Description
Improve chassis rigidity and create additional exhaust clearance with the MMX Performance Underbody Chassis Brace for the BMW F87 M2, F87 M2 Competition, F80 M3, and F82/F83 M4. Designed specifically for enthusiasts running larger-diameter aftermarket exhaust systems, this precision-engineered brace provides 15mm of additional exhaust clearance while maintaining the vehicle's original ground clearance.
Unlike the factory stamped steel brace, the MMX Performance Chassis Brace is precision CNC-machined from aerospace-grade billet 6061-T6 aluminum, offering superior strength, reduced weight, and exceptional durability. Its optimized lightweight design removes unnecessary material without sacrificing structural integrity, helping reinforce a critical section of the chassis for improved handling, stability, and driver confidence.
Whether you're carving back roads, tackling track days, or building the ultimate OEM+ project, this brace minimizes the risk of exhaust contact without requiring any permanent vehicle modifications.
Designed and tested in the United Kingdom, the MMX Underbody Chassis Brace reflects MMX Performance's commitment to premium engineering, precise manufacturing, and motorsport-inspired performance.
Features & Benefits
- Provides 15mm of additional exhaust clearance
- Maintains factory ground clearance
- Increases chassis rigidity for improved handling and stability
- Precision CNC-machined from billet 6061-T6 aluminum
- Lightweight, high-strength design
- Ideal for vehicles with larger aftermarket exhaust systems
- Direct replacement for the factory underbody brace
- Uses original factory mounting points
- No cutting, drilling, or fabrication required
- Fully reversible installation
- Designed and tested in the United Kingdom
Specifications
Brand:
- MMX Performance
SKU:
- MMR13-1000
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
Vehicle Fitment
Fits the following BMW models:
- BMW M2 (F87)
- BMW M2 Competition (F87)
- BMW M3 (F80)
- BMW M4 Coupe (F82)
- BMW M4 Convertible (F83)
Why Choose the MMX Performance Underbody Chassis Brace?
The MMX Performance Underbody Chassis Brace is the perfect upgrade for F8X owners seeking improved chassis performance while accommodating larger aftermarket exhaust systems. By combining lightweight billet aluminum construction with increased rigidity and 15mm of additional exhaust clearance, it delivers enhanced handling, improved durability, and OEM-quality fitment—all without compromising ground clearance or requiring permanent modifications. Whether your BMW is a daily driver, weekend canyon carver, or dedicated track build, this chassis brace offers the ideal balance of performance, strength, and precision engineering.
