Dusterhoff Racing DT937 Flex Trackhawk Power Package

The Dusterhoff Racing DT937 Flex Trackhawk Power Package is a complete, professionally engineered performance system developed specifically for the 2018-2021 Jeep Grand Cherokee Trackhawk equipped with the supercharged 6.2L Gen 3 HEMI engine. Designed for enthusiasts who want to unlock the true potential of the factory Hellcat-powered SUV, the DT937 package combines proven airflow, boost, fueling, and flex fuel upgrades with Dusterhoff Racing’s custom calibration to deliver outstanding horsepower, torque, and overall drivability. Rather than assembling individual components and hoping they work together, this package provides a tested combination of premium parts that maximize performance while maintaining excellent reliability. Whether your goal is quicker street performance, stronger highway acceleration, improved drag strip results, or a more capable daily-driven Trackhawk, the DT937 package offers a complete solution built around years of Gen 3 HEMI tuning experience.

The biggest advantage of the DT937 package is its ability to take full advantage of E85 flex fuel while still retaining the convenience of running premium pump gasoline when necessary.

This is our Flex Durango Hellcat 937HP Package.

Package Includes:

Dusterhoff Tuning Upper Pulley Kit
Fuel Injectors
PCM Unlock Service
HD Belt
180 Thermostat
Smart Access Cable
RTD with Credits
DT Serialized Plaque
Engine Tune
Transmission Tune
Certificate of Authenticity
DT Serialized Plaque
Dusterhoff Racing Swag

This package makes around 100hp over stock on 91/93 pump gas or around 150hp over stock on E85.

When combined with Dusterhoff Racing’s custom ECU calibration, these upgrades produce approximately 150+ horsepower over stock while dramatically improving throttle response, mid-range torque, and top-end acceleration. Every calibration is developed specifically for your Trackhawk and its exact hardware combination, allowing ignition timing, fueling, transmission behavior, torque management, and cooling strategies to be optimized for maximum safe performance. The result is an SUV that accelerates harder throughout the RPM range while retaining smooth idle quality, factory-like drivability, and dependable long-term reliability whether driven daily or pushed hard at the drag strip.

The DT937 package also serves as an outstanding foundation for future modifications. Owners can later add larger throttle bodies, upgraded heat exchangers, ported superchargers, long tube headers, camshafts, or additional fuel system upgrades while building upon the proven tuning strategy already established. Dusterhoff Racing has spent years refining Gen 3 HEMI performance combinations, ensuring every component included complements the others for repeatable, reliable horsepower gains. If you’re searching for one of the most comprehensive bolt-on performance packages available for the Jeep Grand Cherokee Trackhawk, the DT937 delivers premium hardware, expert custom tuning, and exceptional real-world performance. For additional upgrade options, browse our catalog to explore more Dusterhoff Racing systems built specifically for the supercharged Gen 3 HEMI platform.

Specifications & Features
Manufacturer: Dusterhoff Racing
Product Name: DT937 Flex Trackhawk Power Package
Product Type: Complete Flex Fuel Performance Upgrade Package
Engine Compatibility: 6.2L Supercharged Gen 3 HEMI V8
Vehicle Compatibility: 2018-2021 Jeep Grand Cherokee Trackhawk
Year Compatibility: 2018, 2019, 2020, 2021
Estimated Power Gain: Approximately 150+ Horsepower Over Stock
Fuel Compatibility: Premium Pump Gas & E85 Flex Fuel
Included Components
Dusterhoff Tuning Upper Pulley Kit
Heavy Duty Supercharger Belt
Flex Fuel Kit
High-Flow Fuel Injectors
180° Performance Thermostat
PCM Unlock Service
HP Tuners RTD Interface with Required Credits
Smart Access Cable
Dusterhoff Racing Custom Flex Fuel Tune
Certificate of Authenticity
DT Serialized Plaque
Dusterhoff Racing Swag
Performance Features
Flex Fuel (E85) Capability
Increased Supercharger Boost
Increased Horsepower & Torque
Improved Airflow Efficiency
Enhanced Throttle Response
Increased Mid-Range Torque
Increased Top-End Horsepower
Optimized Engine & Transmission Calibration
Lower Operating Temperatures
Excellent Street Drivability
Supports Future Performance Upgrades
Intended Use
Daily Driving
Street Performance
Drag Racing
Roll Racing
Half-Mile Events
Installation & Notes
Professional Installation Recommended
PCM Unlock Required (Included)
Custom Remote Tuning Included
Weight: Varies by Included Components
Dimensions: Vary by Package Configuration
Color: Components Vary by Manufacturer
Built Around Proven Dusterhoff Racing Gen 3 HEMI Performance Strategies
Compatible with Future Upgrades Including Ported Superchargers, Larger Throttle Bodies, Heat Exchangers, Long Tube Headers, Camshafts, and Additional Fuel System Modifications