416 HORSEPOWER, 420 FT-LBS TORQUE

The Weistec M273 ECU upgrade For the naturally aspirated 5.5 liter V8 engine provides substatial gains across the entire powerband putting down the power when you need it! Paired with our TCU tune, you can transform the entire driveabilty of your machine. 

KEY FEATURES:

• Improved throttle response
• Optimized Fueling
• Optimized Ignition Timing