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 Stages - Multiple performance levels depending on installed hardware Fuel Grades - Multiple octanes from which to choose Ethanol - Ethanol support from E60-E85 for maximum performance Acceleration - Accelerate faster with more power and reduced throttle lag Linear Throttle - Pedal maps adjusted for a more linear feel Launch Control - Adds a new launch control strategy for better launches with more driveline protection Brake Boosting - Left foot braking or brake boosting added Rev Limiter - Increased redline for higher revving Standing Limiter - Increased standing limiter for higher revving at idle 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 Exhaust Flaps - Enhanced power delivery and drivability through recalibrated exhaust flap actuation Added Safety - Additional safety features and protection modes added Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration Boost Gauge - The factory boost gauge displays accurate boost and reacts more quickly Power and Torque Gauges - The factory power and torque gauges are accurately rescaled Flash Counter - Flash counter does not increase with each flash Direct Port Programming - Clean and easy install to the factory ECU without opening the case Free Updates - Get free updates for life Guarantee - 30 day money back guarantee APR Calibration Report Stage HP TQ Max Gain Max Gain Stock As Reported by Audi 444 HP 443 FT-LBS Stock As Measured by APR 458 HP 469 FT-LBS APR Plus APR Plus (91 AKI) 488 HP 537 FT-LBS +75 HP +98 FT-LBS Stage 1 91 AKI / 95 RON 488 HP 537 FT-LBS +75 HP +98 FT-LBS 93 AKI / 98 RON 498 HP 556 FT-LBS +90 HP +118 FT-LBS 100 AKI / 104 RON 524 HP 581 FT-LBS +115 HP +143 FT-LBS 104 AKI / 108 RON 532 HP 606 FT-LBS +129 HP +168 FT-LBS E60-E85 550 HP 569 FT-LBS +104 HP +123 FT-LBS Stage 1+ w/ HPFP E60-E85 561 HP 608 FT-LBS +138 HP +169 FT-LBS APR Software Pricing Guide Our performance software upgrade is available in multiple stages with optional features. APR Plus (USA/Canada) APR Plus ECU Upgrade with a Limited Powertrain Warranty $1,799.95 APR Stage 1 APR Stage 1 ECU Upgrade $899.95 APR Stage 1 ECU Upgrade from APR Plus Free APR Stage 1+ APR Stage 1+ ECU Upgrade $899.95 APR Stage 1+ ECU Upgrade from APR Plus or Stage 1 Free 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 produces up to 488 HP and 537 FT-LBS of torque with gains as high as +75 HP and +89 FT-LBS of torque at the wheels. Please check our warranty manual to understand modifications supported by APR Plus. Important fuel quality information Find your boxcode and revision Launch Control Tutorial APR Plus Warranty Booklet Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more. When describing fuels, the North American Region (NAR) uses the Anti-Knock Index (AKI), (RON+MON)/2, or (R+M)/2. The Rest of the World (ROW) uses RON. RON is Research Octane Number and MON is Motor Octane Number. Please Note: Each vehicle's year, make, and model may have multiple factory engine or transmission controller software part numbers, known as box codes, each with unique revisions. Manufacturers periodically release software updates that alter this information, which can only be determined by scanning the controller and is not publicly provided. Due to the variety of codes, some stages, octane levels, features, or options may not be available for specific codes. Therefore, our website provides a general guide based on general info such as Year, Make, and Model. Our system allows you to request unavailable software, and we offer a 30-day money-back guarantee if you're not satisfied.
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