ProFlex DXI for 2020+ GM 5.3L Silverado, Sierra, Suburban, Tahoe, Yukon & Yukon XL

The ProFlex DXI Flex Fuel System is a plug-and-play adaptive flex fuel solution engineered specifically for 2020-newer GM trucks and SUVs equipped with the 5.3L V8 engine. Utilizing patented ethanol sensing and fuel management technology, the system automatically adjusts fueling in real time, allowing you to run gasoline, E85, or any blend in between without tuning or ECU modifications. Developed and validated on an extensive fleet of late-model GM vehicles, ProFlex DXI delivers increased horsepower, torque, cooler operating temperatures, and enhanced flexibility while maintaining factory drivability.

Key Features

Complete plug-and-play flex fuel system
No tuning or ECU calibration required
Run gasoline, E85, or any ethanol blend seamlessly
Maximizes horsepower and torque while protecting engine components
Designed specifically for 2020+ GM 5.3L V8 applications
Cooler engine, oil, and coolant temperatures when running E85
Better fuel efficiency than many factory flex fuel systems
Exclusive ColdStart Plus™ software improves cold-weather E85 starting
Quick DIY installation in approximately 15 minutes
Uninstalls in as little as 5 minutes
Made in the USA
Invisible to scan tools and designed to maintain factory vehicle operation
Allows immediate switching between gasoline and E85 without adjustments

Fitment

2020-Present Chevrolet Silverado 1500 5.3L V8
2020-Present GMC Sierra 1500 5.3L V8
2020-Present Chevrolet Tahoe 5.3L V8
2020-Present Chevrolet Suburban 5.3L V8
2020-Present GMC Yukon 5.3L V8
2020-Present GMC Yukon XL 5.3L V8

Performance Benefits

Increased horsepower and torque when operating on E85
Enhanced towing and hauling performance
Improved resistance to detonation through higher fuel octane
Reduced operating temperatures under load
Greater fuel flexibility with no driver intervention required
Maintains OEM-like drivability and reliability

Installation

The ProFlex DXI system is designed for simple installation using basic hand tools. Most users can complete the installation in approximately 15 minutes with no permanent modifications required. Once installed, the system automatically adapts to changing ethanol content without requiring tuning, calibration updates, or driver input.

Note: Designed specifically for 2020-present GM 5.3L V8 truck and SUV applications. The ProFlex DXI system provides true adaptive flex fuel capability, allowing seamless operation on gasoline, E85, or any blend while maintaining factory drivability and performance.