The 5.7L Hemi V8 in Ram trucks responds well to engine tuning, offering the potential for improved throttle response, horsepower, and driveability. This guide highlights select tuners and PCM options designed for the 5.7 Hemi Ram, helping you compare on-vehicle performance tools from reputable brands. Below is a quick summary table of the featured products to help you scan options at a glance.
| Product | Brand | Key Benefit |
|---|---|---|
| Superchips Pulsar 8 | POWERTEQ | On-the-fly MDS on/off and multiple performance levels |
| RadySpeed Radiator 5.7L | RadySpeed | Cooling-focused mod for sustained performance |
| ECCPP 2813 Radiator | ECCPP | Full aluminum core for longevity and cooling |
| Rayten Radiator 04-09 5.7 | RAYTEN | OEM-fit aluminum radiator for cooling improvements |
| DiabloSport Intune i3 Platinum | DiabloSport | Plug-and-play tuning with drivability gains |
Superchips Pulsar 8 Performance Levels

The Pulsar 8 inline module offers user-selectable MDS on/off and multiple performance modes to tailor power, torque, and fuel economy. It is designed for 5.7L Hemi engines in modern Ram applications, enabling quick adjustments without removing the engine lid. Installation is typically straightforward, and the device is oriented toward enthusiasts seeking improved throttle response and performance versatility without major mechanical changes.
RadySpeed Aluminum Radiator For 5.7L V8 Hemi

While not a tuner, the RadySpeed aluminum radiator supports sustained performance gains by improving cooling capacity for 2004-2009 Ram 1500/2500/3500 with the 5.7L V8. Enhanced cooling reduces risk of heat-induced detonation during aggressive driving and tuning, preserving engine reliability under higher power outputs.
ECCPP 2813 Radiator for Dodge Ram 5.7L

This full aluminum radiator is built to OEM specifications for 2004-2009 Ram 1500/2500/3500 with the 5.7L V8. It emphasizes longevity and consistent cooling performance, enabling sustained power delivery for tuned engines and hot-weather operation.
Rayten Radiator 04-09 5.7 V8 2 Row

Rayten’s radiator is designed for multiple Ram models from 2004 to 2009. The 2-row core and OEM-fit dimensions help ensure a straightforward installation while improving coolant flow characteristics for higher-performance applications and tuned engines.
VMS Racing 345 Aluminum Emblem

Not a tuner, but an upgrade accessory that complements engine aesthetics and branding on Dodge Ram vehicles. The emblem is crafted from aircraft-grade aluminum with a 3D feel and weather resistance, suitable for completed dashboards or engine bays and aftermarket restoration projects.
DiabloSport PCM-CHARV815 Programmer Kit

Modified PCM kit for 2015 Dodge Challenger 5.7/6.4 Hemi, enabling performance tuning. A DiabloSport Modified PCM unlocks performance potential for select Chrysler, Dodge, Jeep, and Ram vehicles. Requires a compatible tuning device to install a tune and is not interchangeable with other brands.
DiabloSport 8321-AR Intune i3 Platinum

The Intune i3 Platinum provides an easy-to-use tuning solution for Ram models, including 5.7L options. It focuses on power boosts, drivability, and throttle response improvements. The device is designed to work with a range of vehicle configurations via downloadable tunes and user settings.
DiabloSport PCM-CHALV815 Programmer Kit

Modified PCM kit designed for 2015 Challenger variants with 5.7/6.4 Hemi. This kit enables access to performance tunes and requires a DiabloSport tuning device to install software. Not compatible with other tuning brands at this time.
Buying Guide: Key Purchase Considerations
- Compatibility: Verify PCM compatibility with your exact Ram year, model, and engine (5.7L Hemi). Some units are model-specific or require the use of specific tuning devices.
- Installation: Consider whether a device is plug-and-play or requires professional installation. Some PCM mods may require calibration steps or a learning period for the vehicle’s ECU.
- Performance Goals: Decide between throttle response, peak horsepower, or drivability. Tuners and PCMs often emphasize one or more of these aspects.
- Reliability and Support: Choose brands with documented on-vehicle support, robust customer service, and a history of updates for evolving vehicle software.
- Cooling and Accessories: For tuned engines, pairing with an upgraded cooling system (radiators, fans) can improve reliability during sustained high-power operation.
- Future Upgrades: If you plan additional performance enhancements, select a tuner platform with scalable options or compatibility with future tunes.
- Warranty and Compliance: Be aware of warranty implications and local regulations regarding engine tuning and emissions in your area.
In evaluating options, prioritize tuning devices and PCMs with a proven track record for the 5.7Hemi Ram. Consider on-vehicle testing under safe driving conditions to gauge throttle response, shift behavior, and overall drivability after applying a tune. Always confirm fitment using the manufacturer’s guidance and ensure cooling enhancements are in place for higher-performance setups.