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Ignitions and Electrical› Computers, Chips, Modules and Programmers

APR

Transmission Control Unit Upgrade

$649.95 $566.43 Save $83.52

SKU: TCU-AL552

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The APR TCU Upgrade is a performance software upgrade for the 8-Speed Tiptronic AL552 ZF8 transmission. It enhances transmission function, drivability, and performance through custom features for both daily and sporty driving. The software loads directly through the OBD-II port, offering a straightforward installation.
Show original supplier description
The APR TCU-AL552 is a performance software upgrade for the ZF 8-speed Tiptronic transmission, specifically designed for vehicles equipped with the AL552 transmission code. This upgrade optimizes the transmission's control unit to enhance sporty driving capabilities. Key improvements include increased torque capacity, optimized clamping pressure, refined torque management during shifts, and AMAX in all gears for a more responsive and engaging driving feel.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAPR
Part NumberTCU-AL552
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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