Dusterhoff Racing 997HP E85 Dodge Durango SRT Hellcat Performance Tuning Package with Pulley Kit

The Dusterhoff Racing DT997E Hellcat Durango Power Package represents one of the most comprehensive E85-ready performance solutions available for the 2021+ Dodge Durango Hellcat equipped with the factory 6.2L Supercharged Gen 3 HEMI engine. Designed for enthusiasts pursuing maximum street and track performance, the DT997E combines carefully selected airflow, fueling, and supercharger upgrades with Dusterhoff Racing’s proven custom flex fuel calibration. Every component has been chosen to work together as a complete system, eliminating the uncertainty of mixing aftermarket parts while delivering significant gains in horsepower, torque, throttle response, and overall vehicle performance. Whether you’re chasing quicker elapsed times, faster roll-racing speeds, or simply want the strongest-performing Durango Hellcat possible, this package provides a professionally engineered solution backed by extensive Gen 3 HEMI tuning experience.

Package Includes:
Dusterhoff Tuning Upper Pulley Kit
ATI Lower Damper and Pin Kit
18+ Crank Bolt
Fuel Injectors
HD Belt
Dual BAP
PCM Unlock Service
180 Thermostat
Smart Access Cable
RTD with Credits
DT Serialized Plaque
Engine Tune
Transmission Tune

The 2.64 pulley is the standard setup for this package. Opting for the 2.72 will produce slightly less power, but it will also slow the supercharger down, helping reduce the risk of potential blower damage over time.

This package is good for roughly 200 whp over stock.

*THIS PACKAGE INCLUDES PARTS AND REMOTE TUNING
*INSTALLATION IS ADDITIONAL

Running on E85 allows the supercharged Hellcat engine to take advantage of the fuel’s higher octane rating and superior resistance to detonation, giving Dusterhoff Racing the ability to safely optimize ignition timing and boost-related calibration strategies beyond what is possible on conventional premium pump gasoline. Combined with increased airflow and supporting fuel system upgrades, the DT997E package helps the factory supercharger operate more efficiently while supplying the additional fuel volume required to support elevated horsepower levels. The result is stronger acceleration throughout the RPM range, quicker throttle response, improved consistency during repeated wide-open throttle pulls, and enhanced overall engine performance without sacrificing everyday drivability.

Every DT997E package includes professional Dusterhoff Racing custom remote tuning, ensuring the calibration is built specifically for your vehicle and the exact components included in the package. Unlike generic handheld tunes, every file is individually developed to optimize fuel delivery, ignition timing, throttle mapping, torque management, transmission behavior, cooling fan operation, and numerous other ECU parameters. This individualized approach provides smooth drivability during normal cruising while unleashing the full potential of the supercharged Gen 3 HEMI when performance is demanded. As future upgrades are added, Dusterhoff Racing can continue revising your calibration, allowing the package to grow alongside your build.

For enthusiasts planning long-term performance goals, the DT997E also serves as an outstanding foundation for future modifications including smaller supercharger pulleys, ported superchargers, oversized throttle bodies, upgraded camshafts, larger heat exchangers, additional fueling improvements, and other high-horsepower upgrades. Rather than replacing components as your build evolves, this package is designed to support continued expansion while maintaining safe operation and exceptional reliability. If you’re searching for one of the highest-performing E85 power packages available for the Dodge Durango Hellcat, the DT997E delivers premium hardware, expert custom tuning, and proven Gen 3 HEMI performance in one complete package.

For additional blower upgrades, fueling components, and supporting modifications, browse our Hellcat Power Packages category to continue building your supercharged Gen 3 HEMI.

Specifications & Features
Manufacturer: Dusterhoff Racing
Product Name: DT997E Hellcat Durango Power Package
Product Type: Complete Flex Fuel Supercharged Performance Package
Engine Compatibility: 6.2L Supercharged Gen 3 HEMI
Fuel Compatibility: E85 / Flex Fuel
Vehicle Compatibility:
2021+ Dodge Durango Hellcat
Year Compatibility:
2021-Present
Transmission Compatibility:
8-Speed Automatic
Professional Dusterhoff Racing Custom Remote Tune Included
Complete Performance Upgrade Package
Designed for High-Horsepower E85 Applications
Increased Horsepower
Increased Torque
Improved Supercharger Efficiency
Improved Airflow
Increased Fuel System Capacity
Optimized Fuel Delivery
Optimized Ignition Timing
Improved Throttle Response
Enhanced Cooling Strategy
Optimized Transmission Calibration
Excellent Street Manners
Supports Future Tune Revisions
Compatible with Future Performance Upgrades
Excellent Foundation for:
Smaller Supercharger Pulleys
Ported Superchargers
Larger Throttle Bodies
Upgraded Camshafts
Heat Exchanger Upgrades
Additional Fuel System Modifications
Installation Difficulty: Advanced
Professional Installation Recommended
Intended Use:
Street Performance
Drag Racing
Roll Racing
Daily Driving
Color: Varies by Included Components
Weight: Varies by Package Contents