In the competitive world of motorsports and high-output engine tuning, every component counts. Garrett Motion’s GTX Gen II Super Cores represent a significant evolution over the already respected Gen I units — delivering more power, greater efficiency, and enhanced tuning flexibility. In this article, we break down the key improvements and why they matter for serious performance builds.
Max Power Comparison: Gen I vs Gen II
Side-by-side testing clearly shows the Gen II lineup offering a substantial increase in max power capability over the Gen I turbochargers. The improved design allows more air mass flow, increasing the horsepower ceiling — a critical factor for tuners looking to extract every bit of performance. Check out GTX3582R Gen II for builds targeting 750+ HP
Redeveloped Compressor Wheels for Greater Flow & Efficiency
At the core of the Gen II upgrade is a complete redesign of the compressor wheels. Engineered using Garrett’s proprietary CFD (Computational Fluid Dynamics) modeling, these wheels achieve superior mass flow and aerodynamic efficiency. This translates to quicker spool, reduced turbo lag, and higher power potential across the rev range.
Enhanced Reliability with Dual Ceramic Ball Bearings
Each Gen II Super Core is equipped with an 8mm dual ceramic ball bearing cartridge. This setup minimizes shaft motion, reduces friction, and improves turbo response. It also significantly increases the lifespan of the unit, ensuring reliability even under extreme loads and sustained boost conditions.
Redesigned High-Flowing Compressor Housing
To complement the upgraded wheels, Garrett has introduced a new high-flowing compressor housing. This housing is specifically matched to the Gen II wheel architecture, ensuring optimal performance. While it is not backward compatible with Gen I compressor wheels, the Gen II turbos are outline-interchangeable with previous Gen I and GT units — making installation and retrofitting straightforward using existing piping setups.
