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Thumbnail Filmstrip of 2004.5-2010 Duramax Powermax GT3794VA Stage 1 Turbo Garrett 773540-5001S Images
Looking for a high-performance turbocharger for your Duramax engine? Look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo. This drop-in replacement turbocharger is a great choice for those looking to retain their factory electronics while supporting up to 500HP. The Powermax GT3794VA features an innovative design that makes it one of the most efficient and powerful turbos on the market. If you're looking for a turbocharger that can really maximize the performance of your Duramax engine, look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo.
• Supports Up To 500HP
• Increased compressor flow and boost response
• Nine movable turbine vanes for increased efficiency
• Improved engine performance from idle launch through peak torque
• Designed as a drop-in upgrade, retains factory components and exhaust system
• Larger compressor wheel increases power range while supporting up to 500HP
• Suitable replacement for factory turbocharger, additional fueling upgrades recommended
• Includes turbocharger, adapter cable, and installation instructions
Gaskets not included.
Looking for a high-performance turbocharger for your Duramax engine? Look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo. This drop-in replacement turbocharger is a great choice for those looking to retain their factory electronics while supporting up to 500HP. The Powermax GT3794VA features an innovative design that makes it one of the most efficient and powerful turbos on the market. If you're looking for a turbocharger that can really maximize the performance of your Duramax engine, look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo.
• Supports Up To 500HP
• Increased compressor flow and boost response
• Nine movable turbine vanes for increased efficiency
• Improved engine performance from idle launch through peak torque
• Designed as a drop-in upgrade, retains factory components and exhaust system
• Larger compressor wheel increases power range while supporting up to 500HP
• Suitable replacement for factory turbocharger, additional fueling upgrades recommended
• Includes turbocharger, adapter cable, and installation instructions
Gaskets not included. [...]
Looking for a high-performance turbocharger for your Duramax engine? Look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo. This drop-in replacement turbocharger is a great choice for those looking to retain their factory electronics while supporting up to 500HP. The Powermax GT3794VA features an innovative design that makes it one of the most efficient and powerful turbos on the market. If you're looking for a turbocharger that can really maximize the performance of your Duramax engine, look no further than the Garrett 773540-5001S Powermax GT3794VA Stage 1 Turbo.
• Supports Up To 500HP
• Increased compressor flow and boost response
• Nine movable turbine vanes for increased efficiency
• Improved engine performance from idle launch through peak torque
• Designed as a drop-in upgrade, retains factory components and exhaust system
• Larger compressor wheel increases power range while supporting up to 500HP
• Suitable replacement for factory turbocharger, additional fueling upgrades recommended
• Includes turbocharger, adapter cable, and installation instructions
Gaskets not included.
Q
Russell Carriere • 07/26/2026, 0:19:47 AM
What size injector increase does the turbo require, 30% - 20%?
A
07/28/2026, 12:59:18 PM
Neither. The Garrett Powermax GT3794VA Stage 1 Turbocharger (773540-5001S) does not require an injector size increase.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: Duramax 2004.5-2010
Fits: LBZ|LLY|LMM Duramax 2006-2010
California Restricted
Fits: Duramax 2004.5-2010