GCG's G Series Turbocharger range is designed as an upgrade replacement, ideal for those people looking for added tractable power. All G Series Turbochargers are built in house, using a specifically designed exhaust & compressor combinations, providing 25-50% more airflow over a factory unit. This results in a heathy gain in overall torque and horsepower.

To gain the full potential of the GCG - G Series range of turbochargers, we recommend having the vehicle tuned to meet safe EGT's & lambda readings, and fitting upgrade supporting components, such as higher flowing exhaust, upgrade intercooler, upgrade fueling requirments and upgrade air inlet piping/airbox.

The most powerful small frame Turbocharger on the market

Introducing performance out of a package you never thought possible. This clean sheet product is tailored to meet the demands of hard core racing enthusiasts while providing industry leading power capability in a small package.

The G-Series G25-550 and the G25-660 turbochargers are compatible with 1.4L - 3.0L engine displacements and capable of producing up to 550 and 660 horsepower. G Series 25 turbochargers are smaller and outflow all comparable products on the market. New compressor and turbine aero combined with high temperature resistant materials allowed engineers to push the limits of performance. A new name designates a new generation of industry leading technology and innovation.

Understanding the Name: G25-660

• G designates 81 years of Garrett® heritage.
• 25 classifies the size of the frame.
• The remaining 3 digits identify the max horsepower rating of the turbocharger. (ie 660)