Air and Fuel Performance Packages

DSX Tuning

Gen IV/V GM V8 Flex Fuel Kit

$315.00

SKU: DSXFFKC7

In Stock
In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The DSX Tuning flex fuel kit provides a direct plug-and-play solution for integrating flex fuel capability into Gen IV and Gen V GM V8 vehicles. This system empowers your vehicle to run on a spectrum of fuels, from pure gasoline to pure ethanol, unlocking significant performance gains, particularly in forced induction applications. By allowing seamless transitions between fuel types, the kit eliminates the need for manual fuel content monitoring or ECU reflashing, enabling you to maximize your setup's potential. This kit includes a genuine GM Flex Fuel sensor, a plumbing kit constructed from corrosion-resistant materials for simplified installation, and a plug-and-play wiring harness featuring OEM connectors and terminals. A DSX Tuning 3D-printed fuel line disconnect is also provided for convenience. While the kit can be installed without immediate tuning, the ability to switch fuels and realize performance benefits requires activation in the ECM through HP Tuners or EFILive software. DSX Tuning stands behind its manufactured components with a lifetime warranty against defects in materials and workmanship. The included GM sensors carry a 90-day warranty. These components are proudly MADE IN AMERICA.

MIA's Description

The DSX Tuning flex fuel kit is a plug-and-play solution for adding flex fuel capability to Gen IV/Gen V GM V8 vehicles. It allows your vehicle to run on a mixture of gasoline and ethanol, revealing its true power potential, especially in forced induction setups. The kit seamlessly switches between fuels without needing constant monitoring or a tune reflash.

Fitment

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Specifications

BrandDSX Tuning
Part NumberDSXFFKC7
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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