GARRETT G45-1125 67MM

Horsepower: 600 - 1125

Displacement: 2.0L - 8.0L


• G45-1125 compressor aero increases flow up to 10% (compared to GTX4502R 67mm)
• 67mm compressor inducer | 102mm compressor exducer
• Dual ceramic ball bearing with steel cages
• G Series turbine aero increases flow 14% (compared to GTX45R)
• Inconel turbine wheel with 89mm inducer flows up to 56 lbs/min
• Lightweight aluminum backplate
• Fully machined speed sensor and pressure ports
• Water fittings included with supercore
• Stainless steel turbine housings available in T4 divided inlet
• Sized for drag racing classes: Sport Front Wheel Drive, Ultimate Street, Super Street, Street Fighter

G45-1125 Part Number: 888169-5003S

WARNING: Maximum allowable turbocharger speed is 109krpm. The use of this product above max turbocharger speed is at the owner’s risk, and can result in damage and premature failure. To protect the turbocharger from overspeed when operating, a speed sensor can be installed into the compressor housing to monitor shaft speed. Sensors sold separately. (click here for details)

Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration. The horsepower numbers represented above are calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel horsepower.


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G-Series G45-1125 67mm

Reference Data

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G45-1125 Compressor Turbine
Inducer Exducer Trim A/R Inducer Exducer Trim
HP: 600-1125              Disp: 2.0L-8.0L 67mm 102mm 44 0.85 89mm 82mm 84
Supercore PN
Standard Rotation 888169-5003S
Turbine Kits: G45 PN A/R Inlet Outlet Wastegate Divided
Interchangeable with G45-1125 | G45-1350
| G45-1500 Supercores
757707-0019 1.01 V-Band V-Band Free Float N
757707-0020 1.15 V-Band V-Band Free Float N
757707-0021 1.28 V-Band V-Band Free Float N
757707-0022 1.44 V-Band V-Band Free Float N
757707-0023 1.01 T4 V-Band Free Float Y
757707-0024 1.15 T4 V-Band Free Float Y
757707-0025 1.28 T4 V-Band Free Float Y
757707-0026 1.44 T4 V-Band Free Float Y

G-Series G45-1125 67mm

Download Section

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File Name Link View
Configuration Guide Download View
File Name Link View
Compressor Map Download View
Exhaust Flow Chart Download View
Product Photo Download View
Flange Diagram Download View
Speed Sensor Kit Installation Instruction Download View

G-Series G45-1125 67mm

Compressor Map & Exhaust Flow Chart

The latest Garrett technologies featuring many advanced features.

Compressor Map

Exhaust Flow Chart

G Series G45 is available in 2 additional compressor inducer sizes. G45-1350 (72mm) and G45-1500 (76mm) You can click the hyperlinks to go directly to those product pages. All G45 models are interchangeable meaning they are the same size and can be swapped out without having to reconfigure any other turbo kit parts.


G45 Turbine Housing Kits

G45 turbine housing kits are available in four A/R. 1.01 A/R | 1.15 A/R | 1.28 A/R | 1.44 A/R stainless steel housings with T4 divided inlet flange. Our 1.44 A/R T4 turbine housing flows 57 LBS/MIN of air which is a 14% increase over the GTX45 turbine wheel.