Garrett G-Series G45-1125 67mm Turbocharger

$2,864.24 – $4,040.08

1.01 T4 Inlet
1.15 T4 Inlet
1.28 T4 Inlet
1.44 T4 Inlet
$3,369.70 $2,864.24
SKU: 888169-5003S

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 super core
• Stainless steel turbine housings available in T4 divided inlet
• Sized for drag racing classes: Sport Front Wheel Drive, Ultimate Street, Super Street, Street Fighter

Reference Data

The latest Garrett technologies featuring many advanced features.

G45-1125 Supercore Reference Data


SuperCore PN: 888169-5003S

Compressor Turbine
Inducer Exducer Trim A/R Inducer Exducer Trim
67mm 102mm 44 0.85 89mm 82mm 84



G45 Turbine Housing Kits Turbine Kit PN A/R Inlet Outlet Wastegate Divided
Free float / non-wastegated turbine housing kits are sold
independently of the super core
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

Download Section

The latest Garrett technologies featuring many advanced features.

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

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.