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Garrett Powermax Stage 1 GT3788R Turbocharger Kit for 2001-2004 Chevy/GMC Duramax 6.6L (LB7)

Garrett Powermax Stage 1 GT3788R Turbocharger Kit for 2001-2004 Chevy/GMC Duramax 6.6L (LB7)
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Garrett Powermax Stage 1 GT3788R Turbocharger Kit for 2001-2004 Chevy/GMC Duramax 6.6L (LB7)
List Price: $2,965.79
Our Price: $2,817.50
You save $148.29!

Availability:: Usually Ships in 1-2 Business Days
Product Code: GARRETT-766172-1

Description Technical Specs
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Garrett Powermax Stage 1 GT3788R Turbocharger Kit for 2001-2004 Chevy/GMC Duramax 6.6L (LB7)

The Garrett® Bolt-on Powermax Stage 1 Turbocharger Upgrade Kit for 2001-2004 Chevy/GMC Duramax 6.6L allows you to push your Silverado/Sierra up to a robust 545 HP with the Garrett® GT3788R (PN: 766172-1). Each turbo has been meticulously designed to be a bolt-on upgrade with no fabrication, cutting or welding required. This kit features the Garrett® model GT3794VA turbocharger with the Garrett® patented Advanced Variable Nozzle Turbine (AVNTTM) design for increased compressor flow and turbine flow. Utilizing nine movable vanes which significantly increase turbine efficiency and improve engine performance from idle launch through peak torque. The patented integral electro-hydraulic actuation and proportional solenoid for infinitely variable control.

PN 766172-1
Horsepower (estimated) 545
Compressor Wheel Inducer 63.50mm
Compressor Wheel Exducer 88.00mm
Compressor Wheel Trim 52
Compressor Housing A/R 0.72
Turbine Wheel Diameter 72.50mm
Turbine Housing A/R 0.99

Kit Contains:

  • Garrett® GT3788R (766172-1) dual ball bearing application specific turbocharger
  • Exhaust Outlet Kit
  • Turbo Inlet Adapter Kit
  • Installation Instructions
  • Garrett® model GT3788R turbocharger
  • A Garrett exclusive ball bearing cartridge for unbeatable response, efficiency, and durability
  • Advanced GT-series wheel design ensures top performance, lower back pressure and reduced intake and exhaust gas temperatures
  • Patented Garrett® dual ball-bearing cartridge
  • Provides up to an estimated 545 hp with no sacrifice to drivability
  • Outline interchangeable, for a perfect fit each and every time

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