The APR Stage II ECU Upgrade is the next step towards making more power. This stage is designed for use with a pulley upgrade that spins the supercharger faster, such as an APR Supercharger Drive Pulley upgrade, APR Supercharger Crank Pulley, or upgrading both units simultaneously. At least one pulley upgrade is required to run this software. This stage is compatible with an upgraded APR Intake System, exhaust systems, APR Supercharger Cooling System and other small modifications, all without requiring any further modification to the ECU.
With APR's Supercharger Drive Pulley upgrade, the engine produces 437-480 HP with 386-409 FT-LBS of torque. Gains as high as 94-138 HP and 68-100 FT-LBS of torque are available throughout the power band. If using APR's Supercharger Crank Pulleyupgrade instead, the power and torque figures grow slightly higher.
When using both APR's Supercharger Drive and Crank Pulley upgrades together, the engine produces 445-527 HP and 412-459 FT-LBS of torque. Gains as high as 100-182 HP and 80-136 FT-LBS are available throughout the power band. For those looking for even more power, the APR Stage II+ Ultra ECU Upgrade is available for use with APR's Ultracharger Throttle Body, unlocking the full potential of the factory supercharger system!
An APR Supercharger Cooling System is highly recommended and may be required to meet the advertised power figures, especially when running both pulley upgrades. Please note, transmission software is required to achieve power figures past the factory redline.
APR STAGE 2 ECU Tune
APR
