Overview

APR's ECU Upgrades are the best dollar-per-horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with various features and supported octane levels and each stage is compatible with most typical bolt-on modifications. The software is installed to the vehicle's factory ECU through the OBD-II port, resulting in a clean and headache-free install. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!

Features

• Horsepower - More horsepower throughout the whole rpm band
• Torque - More torque throughout the whole rpm band
• Warranty - APR Plus is available, providing a factory term limit matching limited powertrain warranty
• Fuel Grades - Multiple octanes from which to choose
• Ethanol - Ethanol support from E60-E85 for maximum performance (C7.5 Only)
• Acceleration - Accelerate faster with more power and reduced throttle lag
• Brake Boosting - Left foot braking or brake boosting added
• Standing Limiter - Increased standing limiter for higher revving at idle
• Motorsport Limiter - With the soft limiter removed, you‚Äôll get full power right up to the hard, ‚Äúbap bap bap‚Äù redline fuel cut
• Speed Limiter - Go as fast as you want with the speed limiter out of the way
• Auto Start/Stop Inversion - Auto Start/Stop defaults to the off position (C7.5 Only)
• Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
• Flash Counter - Flash counter does not increase with each flash
• Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU
• Free Updates - Get free updates for life
• Guarantee - 30 day money back guarantee

Available Stages

APR Stage 1

The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 288-357 HP and 361-391 FT-LBS of torque. APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E86 in North America, and 95 RON, 98 RON, 104 RON, 104 RON, and E60-E85 in the Rest of the World. Ethanol is only available on the C7.5 models. ### APR Plus APR Plus is our APR Stage 1 ECU Upgrade with our limited powertrain warranty and it’s the first step towards tuning your engine. It produce