MAD BMW G90 / G99 M5 Axle-Back

The MAD axle-back is the perfect finishing touch for your G90 M5 especially when paired with the MAD 5-inch single midpipe for maximum sound. Choose from brushed, black, or carbon tips to match your desired look.

Unlike the North American G90/G99, where the factory exhaust does not come valved and offers no way to control exhaust volume, the MAD axle-back gives you full control. This system is fully valved and includes two valve motors and a controller, allowing you to switch between a quiet, refined tone and a loud, aggressive sound on demand.

Featuring larger-diameter piping for improved flow and a smaller muffler design to reduce weight, this setup delivers better throttle response, increased sound, and a cleaner overall tone.

Deep, aggressive, and fully controllable this is the sound the G90 M5 should have had from day one.

Features

Larger-diameter piping for increased flow
Includes two valve motors and valve controller
304 stainless steel construction
Lifetime warranty
Compatible with stock midpipe or MAD 5-inch midpipe

Note: Cutting is required when connecting to the factory midpipe.
Recommendation: We highly recommend pairing this axle back with the MAD single midpipe for the best overall sound and performance.