The IE Transmission Tune for your Audi turbocharged B9 S4, S5, or SQ5 3.0T delivers increased power, higher RPM limit, faster shifts, variable launch control and additional transmission performance features. When paired with the matching ECU tune, acceleration times will greatly improve turning your tuned turbocharged engine into a fully rounded performance machine.

IE AL552 ZF8 TCU Tune | Fits Audi B9 S4, S5, & SQ5
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AUDI B9 3.0T ZF8 AL552 TRANSMISSION TUNE
PERFORMANCE MATCHED
IE's B9 3.0T ECU Tunes are fully realized performance calibrations that deliver incredible power figures. Without a matching TCU tune, the transmission can feel unmatched to the new ECU tune -leaving speed on the table. Furthermore, the TCU upgrade modifies shift speed, torque limit maps, line pressure, and launch control functions, to fully match your ECU calibration. As a result, horsepower and torque levels are raised and acceleration is greatly improved to create a complete ECU & TCU performance package.
LEADING FEATURES
- Performance matched calibration for all IE B9 3.0T tunes
- Enables launch control in drive, sport, and manual modes
- Includes user-adjustable launch control
- Lightning-fast shift speed
- Enables 6500 RPM limit in all transmission gears
- Increases torque limits
- Refined drive for the automotive enthusiast
- Reduces time for double-downshifting gears
- Line pressure increased to protect against trans slip
- Direct port OBDII at-home flashing
Stage 1 or higher ECU Tune is required to run this transmission tune.
VARIABLE LAUNCH CONTROL
The IE ZF8 AL552 TCU Tune includes a variable launch control to deliver chest pounding launches from a stop. 3 different launch RPMs (street, aggressive, or race) are included to dial in the fastest launch for your vehicle and tire setup. With the optimized launch mode set in your TCU, you can launch to the moon knowing your tires will put down the maximum power needed for the fastest launch.
ONE TUNE FOR ALL STAGES
IE’s ZF8 AL552 TCU tune is all-inclusive without any unnecessary upgrades or additional charges for future ECU Tune upgrades. All features and optimizations are included for any level of hardware or performance stage, one cost and you are covered for all and any future upgrades.
RELIABILITY TESTING
IE's fully proven transmission software allows the full performance experience from your supercharged 3.0T engine while retaining factory comfort and reliability. IE's own tuning technology suite is used to completely reverse-engineer the factory transmission mapping, allowing our software engineers access to realign all safety protocols for the new TCU calibration. Every tune parameter undergoes months of testing on our in-house dyno systems to verify all correct conditions for peak power delivery and reliability. All driving behavioral maps undergo thousands of miles of testing and a variety of users were polled to develop the ideal driving behavior.
DRIVING ENHACEMENTS
The factory transmission calibration has many performance short comings leaving much to be desired by the enthusiast driver. IE software engineers have completely reworked the transmission tune computer with performance driving in mind. This new transmission calibration keeps the engine and transmission in the proper gear throughout the power range in a sported driving scenario without any annoying gear-hunting situations.
RPM LIMIT RAISED
The factory ECU and TCU tune has a maximum rev limit of 6500RPM, however in full throttle pulls 1st and second gear are short shifted, leaving power on the table. IE's complete TCU tune raises the transmission to a 6500RPM limit across the board for the best powerband in every gear. This extra power band will not only rev out longer, but will take full advantage of the extra top-end power on ethanol tunes sending your car down the track even faster!
FAST DOWNSHIFTS
When engaging full throttle from a cruising speed, the factory TCU calibration has longer pauses when dropping multiple gears. This delay causes a large lag when you are asking for immediate power. IE's performance calibration removes these delays when dropping down multiple gears, delivering near-instant boost and power when you demand it.
FITMENT GUIDE
MAKE | MODEL | YEAR | GENERATION |
AUDI |
S4 |
2017-2020 |
B9 |
AUDI |
S5 |
2018-2020 |
B9 |
AUDI |
SQ5 |
2018-2020 |
B9 |

FAQ
At T1 Motorsports, Not only do we specialize in aftermarket parts, but we also specialize in all mechanical repairs. We are a full-service mechanical shop, with skilled technicians geared towards OEM and Aftermarket enthusiasts.
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My Order Is Taking Longer Than Expected. What Can I Do?
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What Is Your Return & Exchange Policy?
All processed orders that have not shipped will incur a 6% processing fee, this is mainly to cover any payment processing and cancelation fee with the manufacturer or warehouse. A processed order is an order that has already been put in our system and the product has been taken out of inventory and moving towards the packing and shipping face.
On special order or custom-made orders, the processing face is indicated when the manufacturer has received our order. Please be courteous and notify us ASAP if you wish to cancel any order(s) that were recently placed in order to prevent it from shipping out.
Due to the nature of racing and performance vehicles, no returns will be accepted on special order items, opened, installed, incomplete, or otherwise used products. If a product is ordered and not wanted, the UNUSED item can be returned within 30 days after the product has been delivered. This does not apply to SPECIAL ORDER items. Once the product is returned, you have two options for your refund:
You may have your purchase refunded back on your original payment method minus a 20% restocking fee of the total amount. In this case, please know that the initial shipping is not refundable (free shipping items still incur shipping chargers which MUST be deducted on a return). All items wanting to be returned MUST be reported within 30 days of delivery date. If you are still browsing and want an alternate product, we can provide you with a full credit minus shipping costs as a T1 Motorsports store credit. Some brands are excluded and may incur up to a 10% restocking fee. Please contact us to confirm.
On both refund options, a return shipping label may be provided if you are unable to ship the product(s) back using your own method of shipping. This shipping cost will be deducted from your total refund or credit.
What Should I Do If My Ordered Product Doesn't Fit?
We strive on making our fitment guide perfect. If you have any fitment issues regarding your product, please contact us by email or phone and we will solve your issue.
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- Once you receive an email confirming that your order is ready for pickup, you may collect it at our store during regular business hours.
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- You have 60 days from the date your order status is updated to "Ready for Pickup" to collect your order, unless a different pickup date has been agreed upon.
Orders not picked up within the 60-day window will be deemed abandoned and canceled. No refunds will be issued for abandoned orders.

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