After countless hours of design and testing, Weistec Engineering is proud to announce the new Weistec M157 W.4 Turbochargers that are the core of the Weistec M157 W.4 Package

 

 

The Weistec M157 W.4 Turbochargers are the most comprehensive turbo upgrade for the M157 engine.  This system completely replaces the factory turbochargers.  The M157 W.4 Turbochargers are ball bearing turbochargers featuring CNC machined billet aluminum compressor wheels capable of flowing 65lb/min.  Each turbocharger features a specifically designed compressor cover that clears all the engine accessories (AC compressor, Alternator, etc.) and makes use of the stock charge piping as well as the stock wastegate actuators.  Also integral to the design is the 3 inch anti-surge inlet providing the maximum possible flow to the compressor and helping prevent compressor surge.

 

On the exhaust side, the Weistec Turbochargers feature a cast stainless steel turbo-fold (the common name for an exhaust manifold that has been combined with a turbine housing).  The stock turbos have a very small turbo-fold design, which is the major bottleneck in producing big power with an M157 engine.  The Weistec Turbo-Folds have 50% larger port area with increased manifold cross sectional area supporting much more flow, allowing the engine to safely generate far more horsepower and torque than any other available option.  Despite being a totally new and larger parts, the Weistec Turbo-Folds are designed around the use of the Weistec True Downpipes.  Those that already have the Weistec True Downpipes can be assured that no extra or new exhaust components will be needed.

  

Key Features:

• Twin Ball Bearing Turbochargers

• 65 Lbs/min compressor flow

• Weistec M157 Compressor Covers

• Weistec Cast Stainless Steel M157 Turbo-Folds

• Custom Turbo Coolant Lines and Fittings

• Custom Turbo Oil Lines and Fittings

• Weistec Airboxes and Intake Piping

• Bolt on installation

• All hardware and gaskets are included

• 1000+HP Capable with supporting upgrades

• Designed to use Weistec True Downpipes

• Reuses Stock Wastegate Actuators