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Mercedes-Benz

W.4 Turbo Upgrade, M177
Purchase W.4 Turbo Upgrade, M177
  • SKU: 01-177-01550-7

    W.4 Turbo Upgrade, M177

  • Gains are at the engine or "crank". Actual gains are dependent on the model, model year, fuel octane, engine health, and environmental conditions. Learn More

  • $9,999.99

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weistec Horsepower 950
Weistec Torque 800
Turbo Type W.4 (Complete Replacement)
Manufacturer Weistec
Street legal in all the US States No
Engine Family M177
See more
year make model trim engine
2020 Mercedes-Benz GLC63 AMG S Coupe (X253) Twin Turbo 4L V8 (M177)
2020 Mercedes-Benz GLC63 AMG Coupe (X253) Twin Turbo 4L V8 (M177)
2019 Mercedes-Benz GLC63 AMG S Coupe (X253) Twin Turbo 4L V8 (M177)
2019 Mercedes-Benz GLC63 AMG Coupe (X253) Twin Turbo 4L V8 (M177)
2018 Mercedes-Benz GLC63 AMG S Coupe (X253) Twin Turbo 4L V8 (M177)
2018 Mercedes-Benz GLC63 AMG Coupe (X253) Twin Turbo 4L V8 (M177)
See more

The Weistec Engineering M177 / M178 W.4 Turbo Upgrade is the key to making the most power with the M177 and M178 engines without compromise in drivability or reliability.

The turbo upgrade, as with all W.4 Upgrades, is a comprehensive turbo upgrade that completely replaces the factory turbocharges.  The new turbochargers are ball bearing units with CNC machined billet aluminum compressor wheels rated much higher than the stock units.  The Weistec compressor covers provide mounting for the OEM wastegate actuators and is compatible with the stock charge piping.  A 3 inch anti-surge inlet is standard to provide unrestricted flow to the compressor.

The Weistec Turbine Housings have V-Band inlets, to allow for a cleaner and easier install, and turbine outlets that not only match the factory location, also have the same flange design to use the same Weistec Downpipes and Midpipes as the stock turbos.

*Power gains vary based on model and modifications.

Key Features:

  • Twin Ball Bearing Turbochargers

  • Increased compressor air flow

  • Weistec M177/M178 Compressor Covers

  • Weistec Cast Stainless Steel  M177/M178 Turbine Housings

  • Custom Turbo Coolant Lines and Fittings

  • Custom Turbo Oil Lines and Fittings

  • Weistec Turbo Intake Couplers

  • Bolt on installation

  • All hardware and gaskets are included

  • 900+HP Capable with supporting upgrades

  • Designed to use Stock or Weistec Downpipes

  • Compatible with Factory Downpipes

  • Reuses Stock Wastegate Actuators 

  • No Core Charge