Heat Protection MMX Cardan Shaft Bellows - BMW M2, M3, M4 G8x

MMX cardan shaft bellows heat protection for the BMW M2 G87, M3 G80/G81, and M4 G82/G83 was developed by MMX Performance to effectively protect the cardan shaft bellows from the high temperatures generated by sport exhaust systems and engine upgrades.

When the power output increases or a performance exhaust line is installed, the heat generated near the transmission becomes significantly greater. The original rubber cardan shaft bellows can then deteriorate prematurely due to this prolonged heat exposure. Over time, this can lead to cracks, grease leaks, and accelerated wear on the constant-velocity joints.

BMW has addressed this issue on certain special-edition models by using specific, particularly expensive transmissions. MMX Performance offers a much more affordable solution by directly protecting the components exposed to heat.

These heat protections create an effective barrier between the cardan shaft bellows and the high temperatures emitted by the exhaust. They significantly reduce heat radiation and help preserve the integrity of the bellows as well as the reliability of the drivetrain, even during intensive use on the road or on the track.

Precision-machined from high-quality aluminum, they offer an excellent balance of lightness, rigidity, and heat resistance. Their glossy black anodized finish—a hallmark of MMX Performance—also provides a sleek appearance that integrates seamlessly with the vehicle’s underbody.

Supplied as a complete kit with all necessary mounting hardware, these heat protections represent a simple yet highly effective upgrade for owners of BMW M2, M3, and M4 G8x models equipped with a sport exhaust line or driven under demanding conditions.

An ideal solution for providing long-lasting protection for the cardan shaft bellows, maintaining drivetrain reliability, and ensuring the long-term safety of your engine upgrade.

 

• Protect the propeller shafts from high temperatures
• Reduce heat radiation from the exhaust
• Extend the service life of the boots and drivetrain components
• Cost-effective alternative to CS/CSL propeller shafts
• Lightweight T6-6062 aluminum with a black anodized finish
• Quick installation in 15 to 30 minutes
• Complete kit with all necessary fasteners

Designed for convenience, MMX heat shields install in just 15 to 30 minutes. Whether you use a liftgate or axle stands, the simplicity of the installation process makes this an easy yet essential upgrade for any G8x owner.