BMW F80 M3 Half Bolt-In Roll Cage

Engineered specifically for the BMW F80 platform, our 100% bolt-in half roll cage delivers a perfect balance of motorsport performance, structural rigidity, and OEM-level fitment. Designed for enthusiasts who demand both function and form, this system enhances chassis strength while preserving interior usability including optional rear seat retention.

Manufactured in house using advanced fabrication methods, this roll cage features wide radius bends to ensure even stress distribution, eliminating tube crimping and wall deformation commonly found in lesser designs. The result is a premium, track ready solution built to meet the demands of spirited driving, HPDE, and competitive motorsport environments.

The half cage utilizes a 4-point mounting configuration with six chassis-specific, form-fitted steel brackets, engineered to align with factory mounting locations for maximum strength and precision. Installation is fully bolt-in with no welding required. Professional installation is recommended, though the system is designed for straightforward fitment with all necessary hardware included.

Inspired by our full roll cage development and extensive track involvement, this half cage was created to deliver professional grade safety and performance while maintaining a refined, aggressive aesthetic that complements the BMW F80’s modern design language.

Key Features

100% bolt-in design

No welding required 

4-point half-cage configuration

Chassis-specific fitment for BMW F80

Rear-seat compatible (minor modification to rear side bolsters required)

Optional motorsport and street/HPDE configurations

Six precision form-fitted steel mounting brackets

Wide-radius tube bends for optimal load distribution

No tube crimping or wall thinning

Premium DOM steel tubing: 1.75” diameter, .120” wall thickness

CNC machined chromoly interlocking tube clamps

Optimized mounting locations utilizing factory points

Signature curved rear leg design

All Grade-8 mounting hardware included

Installation instructions provided

Designed and manufactured in the USA