Work Turbochargers G4S-5857

The G4S-5857 represents the latest generation in Work Turbocharger performance — engineered for enthusiasts who demand efficiency, durability, and fast response. A refined variant of our Grand National–specific turbo, this model adds new housing coatings, enhanced balancing, a new variant of our 58mm compressor wheel, and multiple bearing configurations to suit a wide range of builds and budgets.

Standard with This New Generation

Ceramic-Coated Bearing Housing – Enhances heat resistance and improves durability under extreme operating conditions.
Three-Stage Balancing Process – Precision-balanced for smoother operation, reduced vibration, and extended bearing life.
Built Entirely from New Components – No remanufactured parts; every turbo is assembled from 100% new materials.
Blueprinted and Improved Bearing Structure – Optimized internal clearances and upgraded bearing design for increased reliability and efficiency.

Bearing Options

Dual Ceramic Ball Bearings – Maximum efficiency, faster spool, and improved transient response.
Hydrodynamic Journal Bearings – Proven durability and cost-effective performance.