Maximum transmission torque capacity (Clutch pressure/current)

To prevent clutch slip as much as physically possible on the factory clutches, we’ve increased the torque capacity of the transmission to its physical limits. Too much slip can cause excessive wear and damage the clutches. This can happen during gear shifts, transient response, and more, and is mostly on high powered vehicle setups with lots of grip. Clutch pressure is configured to be dynamic and will only increase as necessary. It does not run at the maximum allowable pressure and current at all time.

Optimized wide open throttle shift points

The factory wide open throttle shift points were designed to match the factory output of the vehicle. With tuning, they can be optimized future to improve acceleration times. For the best results our ECU and TCU upgrade must be used together. We have specific maps for the factory turbo, and our big turbo setups.

Optimized shift strategies

Depending on the vehicle mode, type of shift, braking vs accelerating, and more, the transmission will deliver different shifting strategies. We’ve smoothed part throttle / low torque situations for a comfortable normal drive while giving a more aggressive shift at full torque / high RPM for track driving purposes. Shift speeds are increased, and maximum acceleration modes (AMAX) are enabled in gears.

Who we are - We’re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ft² state-of-the-art facility is home to some of the best engineers in the industry, who have mastered hundreds of engine management systems. We have multiple engine and chassis dynos, and the resources necessary to create our TCU Upgrades in-house, from the ground up! We're not a new company either. We've been around since the 90's and we have a strong financial backing to ensure we'll be here to support you for decades to come!

What we do - We optimize everything to make your transmission more capable. We don’t take shortcuts, and we don’t take risks. We do it the right way.

How we differ - With our proprietary calibration and direct ram access data logging tools and operating system code changes, we’re able to make some of the best TCU upgrades, without needing costly end user adjustments.

Purchasing, Guarantee, and Updates

Purchasing Options¹:

1. Do-it-yourself: Purchase an APR Ultralink to connect your vehicle to the Ultralink Marketplace where you can shop, configure, and install APR software!†
2. Do-it-for-me: Locate an APR Dealer and at their location they will sell and install APR software.

Money-Back Guarantee: Try our Software Upgrades for up to 30 days, risk free! If you are not satisfied, have it removed and refunded.²

Free Updates: If we make an update, add a standard feature, or if the manufacturer issues an update, you are entitled to a free update.³

1. Availability: APR Software may not be available for all vehicles. Stages, programs, and features may not be available for all ECUs.

2. Money Back Guarantee: Excludes some Software Upgrades, such as those included with a hardware purchase. Labor charges are at the discretion of the installer.

3. Free updates: Subject to availability. Labor charges are at the discretion of the installer. Applicable to the original purchaser. Second hand owners may inquire with an APR Dealer about a software license transfer fee.

†. Excludes APR Plus. Excludes some platforms. Dealer participation will vary. Visit our product page for details.