Stage 1 / 2 to Stage 3 Supercharger Upgrade, M156

Upgrade your Stage 1 or Stage 2 Weistec Supercharger system to our Stage 3 system with ease. Upgrading is made easy with all the parts needed to convert you to our most powerful system for your M156 equipped AMG. Key Features: One all in one Kit 3. 0L Twin Screw Compressor Upgrade Complete 8-Rib Belt Upgrade Complete Fuel Injector and Harness Upgrade Weistec Engineering Stage 3 Supercharger System ECU Reflash.
* Red powdercoated supercharger option delays delivery by up to 3 weeks.*