The Garrett 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:
G25-550 || 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 550)       
  
Features : 
External Wastegate Available
V-Band to V-Band
GARRETT® G SERIES COMPRESSOR AERODYNAMICS FOR MAXIMUM HP
FULLY MACHINED SPEED SENSOR AND PRESSURE PORTS
NEW TURBINE WHEEL AERO CONSTRUCTED OF MAR-M ALLOY RATED FOR 1055°C
STAINLESS STEEL WASTEGATED AND NON WASTEGATED TURBINE HOUSING OPTION CAPABLE OF 1050°C
OIL RESTRICTOR AND WATER FITTINGS INCLUDED
 
Compressor :
A/R 0.70
Inducer  48mm
Exducer 60mm 
Trim  65
 
Turbine :
Inducer 54mm
Exducer  49mm
Trim  84
 
Horsepower  300 - 550
Displacement  1.4L - 3.0L
 
Turbo assembled and calibrated by Garrett® with 1.0 bar actuator (14.7PSI).
 
Please allow 5-8 working days for delivery