Vargas S55 “GC” Turbocharger Upgrade Kit

The Vargas VTT S55 GC Twin Turbocharger Upgrade Kit is engineered as a true game-changing solution for BMW F8X platforms seeking substantial power gains without compromising reliability or fitment. Designed as a complete plug-and-play system, the GC turbos replace the factory units with fully redesigned components that deliver increased airflow, enhanced durability, and exceptional performance potential.

Each turbocharger features newly cast stainless steel turbine manifolds and housings paired with redesigned compressor housings incorporating single-piece high-flow inlets. At the core is the proven V2 GC CHRA, equipped with a Mar-M246 GTX28-profile turbine wheel and a custom billet compressor wheel. This configuration provides excellent thermal stability, long-term durability, and increased efficiency across the powerband.

The VTT GC turbos are sold as brand-new units with no core charge, allowing you to retain or resell your factory turbos. Installation is fully plug-and-play, with included VTT silicone inlet hoses designed to mate with all common aftermarket inlet systems. With proper fueling, supporting modifications, and professional tuning, this system supports power levels ranging from stock output to 800 wheel horsepower while maintaining strong response and drivability.

Key Features

Mar-M246 superalloy turbine wheels for extreme heat and durability
Upgraded performance thrust bearings for extended turbo lifespan
Billet compressor wheels for increased airflow efficiency
Optional GC+ compressor upgrade with 15–20% additional flow capacity
Cast stainless steel turbine housings for superior heat resistance
Fully plug-and-play installation with custom silicone inlet hoses
No core charge required
One-year limited warranty

Performance Capability

Supports power levels from stock up to 800 WHP
Designed for high-performance street and track builds with proper supporting modifications

Oil Recommendation

Use engine oils rated 40W or higher
High zinc and phosphorus content is recommended for high shear strength and turbo longevity

Fitment

BMW F87 M2 LCI, 2016–2019, S55
BMW F80 M3, 2015–2018, S55
BMW F82 M4, 2015–2019, S55
BMW F83 M4, 2015–2019, S55

Engine: BMW S55 3.0L Twin Turbo
Configuration: Direct replacement twin turbocharger set
Sold as: Matched pair of turbochargers

Legal Notice

These turbochargers are intended for competition racing vehicles only and are not legal for use on public highways in emissions-regulated regions. Compliance with all federal and state laws is the responsibility of the vehicle owner.

Production & Order Policy

Turbochargers are built to order
Typical production time is 2–4 weeks
Once built, units ship within 2 business days
Cancellations and returns may be subject to restocking fees except in warranty or defect cases