DT937 Flex-Fuel Redeye / Demon / Super Stock Power Package

The Dusterhoff Racing DT937 Flex Redeye / Demon / Super Stock Power Package is engineered for enthusiasts looking to extract significantly more performance from their 2019-2023 Dodge Challenger SRT Hellcat Redeye, Dodge Charger SRT Hellcat Redeye, Challenger SRT Super Stock, and Challenger SRT Demon. Built around the factory High Output 6.2L Supercharged Gen 3 HEMI platform, this complete performance package combines increased boost, upgraded fueling, flex-fuel capability, and Dusterhoff Racing’s custom tuning into a proven solution that delivers exceptional horsepower and torque gains. Instead of sourcing individual upgrades and hoping they work together, the DT937 package provides a carefully engineered combination of premium components that maximize performance while maintaining outstanding drivability and long-term reliability. Whether your vehicle spends its time on the street, drag strip, or competing in roll-racing events, this package delivers the power and consistency serious HEMI enthusiasts demand.

The centerpiece of the DT937 package is its ability to fully utilize E85 flex fuel, allowing the engine to safely take advantage of ethanol’s higher octane rating and superior cooling properties. The included Flex Fuel Kit automatically adjusts the calibration based on ethanol content, eliminating the need for separate tunes when switching between premium-pump gasoline and E85. Supporting this additional fuel demand are high-flow fuel injectors, while the Dusterhoff Tuning Upper Pulley Kit increases supercharger speed to generate more boost throughout the RPM range. A heavy-duty supercharger belt ensures reliable belt grip under increased load, and the included 180-degree thermostat helps maintain lower operating temperatures during spirited driving and repeated high-performance use.

What Comes in the DT937 Flex Power Package

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 with Credits
Smart Access Cable
Dusterhoff Racing Custom Flex Fuel Tune
Certificate of Authenticity
DT Serialized Plaque & Swag

With the proper fuel and supporting modifications, the DT937 package is capable of producing approximately 150+ horsepower over stock, dramatically improving acceleration, throttle response, mid-range torque, and top-end power. Dusterhoff Racing’s custom calibration optimizes fueling, ignition timing, boost management, torque management, transmission operation, and cooling strategies to ensure the hardware performs together as one complete system. The result is smooth power delivery, exceptional drivability, and consistent performance whether cruising on the street or making repeated passes at the drag strip.

One of the greatest strengths of the DT937 package is its scalability. It creates a solid foundation for future upgrades, including larger throttle bodies, ported superchargers, upgraded heat exchangers, long tube headers, aftermarket camshafts, and additional fuel system enhancements. Every component has been selected to complement future modifications while maintaining the reliability expected from a professionally engineered package. If you’re looking for a proven flex fuel solution capable of unlocking the true potential of the High Output Gen 3 HEMI platform, the DT937 delivers premium hardware, expert tuning, and outstanding performance. For additional performance parts, browse our catalog to continue building your supercharged Mopar.

Specifications & Features
Manufacturer: Dusterhoff Racing
Product Name: DT937 Flex Redeye / Demon / Super Stock Power Package
Product Type: Complete Flex Fuel Performance Upgrade Package
Engine Compatibility: 6.2L Supercharged High Output Gen 3 HEMI V8
Supercharger Compatibility: Factory 2.7L IHI Supercharger
Vehicle Compatibility:
2019-2023 Dodge Challenger SRT Hellcat Redeye
2019-2023 Dodge Charger SRT Hellcat Redeye
2020-2023 Dodge Challenger SRT Super Stock
2023 Dodge Challenger SRT Demon
Year Compatibility: 2019-2023 (Application Dependent)
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 Credits
Smart Access Cable
Dusterhoff Racing Custom Flex Fuel Calibration
Certificate of Authenticity
DT Serialized Plaque
Dusterhoff Racing Swag
Performance Features
Flex Fuel (E85) Capability
Increased Supercharger Boost
Increased Horsepower & Torque
Enhanced Throttle Response
Improved Mid-Range Torque
Increased Top-End Horsepower
Optimized Engine & Transmission Calibration
Improved Cooling Performance
Excellent Street Drivability
Supports Future Performance Upgrades
Intended Use
Street Performance
Daily Driving
Drag Racing
Roll Racing
Half-Mile Racing
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