Garrett G25-660 Turbocharger 54mm



SKU: G25-660 Categories: ,


Garrett G25-660 Turbo 54mm

As the second smallest of the G Series Turbos, the G25-660 is a turbo of choice for SR20 and CA18 applications. With the capacity to produce 660 crank horsepower, this turbo offers the opportunity to make more power without sacrificing the responsiveness of a small frame factory turbo such as the T25 or T28.

Generally, we would recommend the G25-660 turbocharger for SR20DET set ups currently running a T25 or T28 who are looking to increase their horsepower up to 530 wheel horsepower. If your goals are beyond 530 wheel horsepower, we would recommend the Garrett G30-770 Turbocharger*

The G25 turbochargers are compatible with 1.4L – 3.0L engine displacements. The G25-660 is capable of producing up to 660 wheel horsepower. G Series 25 turbochargers are smaller and outflow all comparable products on the market.

G25-660 54mm Features:

  • G Series Compressor Aerodynamics For Maximum HP
  • 54mm Turbocharger Compressor Wheel
  • 79% Maximum Compressor Efficiency
  • Mar-M Alloy Turbine Wheel Rated Up To 1050° C
  • New Turbine Aero Provides Higher Flow And Efficiency
  • Stainless Steel Turbine Housings Rated Up To 1050° C
  • Oil Restrictor And Water Fittings Included
  • Fully Machined Speed Sensor And Pressure Ports
  • Turbocharger Assemblies Are Calibrated With A 0.5 Bar Actuator

Standard Rotation, External Wastegate Turbine Housing Options:

  • 740902-0069 (0.72A/R, V-Band / V-Band)
  • 740902-0068 (0.92A/R, V-Band / V-Band)
  • 858161-5003S: G25-660 Standard Rotation Supercore

For Internal Wastegate Turbine Housings, please get in contact with our team!

For the G25-660 Reverse Rotation Turbocharger, click here!

Understanding the Name:
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 550)

* Our general advice does not take your specific needs or circumstances into consideration, so you should look at your own objectives and requirements, and seek advice with SRS Parts before making any purchases. Contact us on 07 4602 3858.

About Garrett Advancing Motion:

Garrett was born out of the passion of American founder, John Garrett, for aviation and engineering with the first product, an aircraft intercooler, released in the 1930’s. Turbochargers began rocketing in 1954 and into the auto industry in the 1990’s, when turbochargers went mainstream and global.

With more than 60 years of pioneering turbocharging systems, Garrett Motion is an automotive technology leader in turbochargers and related force induction systems. The company remains American based and is well regarded as one of the best in motorsport turbocharging technology due to their global track record for quality, performance and demonstrated reliability in high performance applications.


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