WEISTEC M157 Biturbo, Turbo UpgradeWeistec Engineering is pleased to release the M157 AMG Turbo Upgrade. We have developed proprietary aerodynamics designed to optimize extreme pressure operation of the M157. The results are astonishing gains resulting in as much as 730 wheel horsepower. Constructed of billet aluminum, our 71mm impeller wheel is 5 axis CNC machined and flows 53+ lbs min of air. The light weight impeller design and latest machining technology results in very short spool

Wheel (and steering wheel) shimmy

an alignment is recommended

the housing compressed which made it impossible to fit the insert into the housing

We have taken our proven supercharger design concepts and applied them to create the most efficient

from US sourced materials to ECIS specifications

Solid machined aluminum housing with urethane inserts

the thickness of the spacer is now thoughtfully engraved on the front side of the face

with a completely different shape than the factory mount

a costly error which will always be considered driver error

With an available revitalization kit

Don't take our word

-Stainless Steel Mounting Hardware