TAG Motorsports is pleased to offer the APR TCU Upgrade (8-Speed Tiptronic AL552 ZF 8HP55) for the 2018-2025 Audi B9 / B9.5 models with the AL552 8-speed Tiptronic (2023-2025 locked TCUs need one dealer visit to unlock, then flash and update anytime with UltraLink).

APR's TCU Upgrade dramatically improves upon the transmission's function, drivability, and performance through a myriad of enhancement and custom features. Normal daily driving is smoother as we've improved upon the normal quirks and complaints associated with the driving experience. Sporty driving is far more capable with increased torque capacity, clamping pressure, torque management during shifts, AMAX in all gears, and optimized shift point! Both scenarios are optimized to deliver faster acceleration by matching the power output delivered by our ECU Upgrades. Lastly, the software loads to the factory TCU through the OBD-II port, resulting in a clean and headache-free install.

Features:

• Full support for factory-locked 2023+ B9.5 TCUs via one-time dealer bench unlock, with Ultralink flashing available afterward.
• Faster up and down shifts in all modes
• Optimized shift points for faster acceleration and smoother driving
• Shift points for both stock and big turbo setups (B9 S4/S5/SQ5) at no additional charge
• Increased maximum allowable torque for higher output
• Increased clutch clamping pressure to hold more torque
• Optimized torque management during shifts for smoother and stronger shifts
• AMAX maximum acceleration shifting mode enabled on all gear shifts
• Manual mode auto 1-2 shift disabled
• Increased maximum RPM on big turbo software (B9 S4/S5/SQ5)
• Works perfectly with our ECU Upgrades
• Flash counter does not increase with each flash
• Direct OBDII port flash (No TCU removal)
• Free lifetime updates
• 30 day money back guarantee

Installation: DIY install at home with an APR UltraLink (sold separately), or have it installed at TAG Motorsports or any authorized APR dealer. Note: the tune is purchased during the install.

Fits: 2018-2025 Audi B9 / B9.5 models with the AL552 8-speed Tiptronic (2023-2025 locked TCUs need one dealer visit to unlock, then flash and update anytime with UltraLink)

APR part number: TCU-AL552

Emissions: This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

About TAG:

TAG Motorsports is proud to be an APR dealer, selling to customers worldwide. We are also an APR installer and service center, serving customers in Southern California.