have questions?
No Duties or Brokerage
We know our products
Always the correct part
Free shipping over $499
034Motorsport - 034SPI Boot Loader Unlock (BLU) Harness for Audi B9.5, 4M.5, & 4M8 AL552/AL952 Transmissions
The 034Motorsport 034SPI Boot Loader Unlock Harness and Software gives you direct end-user access to unlock AL552 TCUs equipped with the locked 401 boot loader. No hardware swaps or shipping, no overpriced third-party tools, and no waiting. This solution puts full control in your hands.
Using a 034Motorsport TCU flashing harness, the system connects directly to the transmission in conjunction with the 034Motorsport SPI flashing dongle. 034SPI BLU allows you to connect directly to the TCU, even bypassing the factory OBD system. The 034SPI BLU software then safely and efficiently unlocks the TCU with a streamlined process that can be completed from your phone, mobile device, and laptop, or through your preferred 034 tuning dealer.
This is the first solution of its kind to offer end-user boot loader unlocking without additional hardware or complicated processes. 034Motorsport has opened up the problematic 401 boot loader unlock to the people, to easily open up a world of TCU tuning options previously thought impossible! It integrates seamlessly with existing 034Motorsport flashing tools and is included at no cost for all existing Dynamic+ TCU tune customers, making it fast, accessible, and easy to use.
This is the market’s first true at-home boot loader unlock solution. No replacing your mech unit, no overpriced extra tools, no shop labor costs. 034Motorsport puts you in control with a faster, simpler, more accessible path to unlocking and tuning.
Unlocking your factory TCU enables Dynamic+ TCU tuning, delivering refined shift strategies, improved drivability, and safe power delivery to complement ECU tuning. The result is smoother operation, quicker response, and a more cohesive performance transformation. The TCU is the second side of power, performance and drivability to the ECU, ensuring both are optimized will give the fastest, safest, most refined driving experience.
Designed for supported 2022+ Audi models equipped with the AL552 transmission and locked 401 boot loader, this solution provides the necessary foundation to run Stage 1, Stage 2, or Stage 3 TCU tunes. Note: 034Motorsport BLU functionality is only available for 034Motorsport tunes, and is not compatible or usable with tunes from other companies.
When Will This Ship?
Please confirm availability on the products page...
In Stock This product will ship within one business day. Available for local pickup in Québec, Canada.
Direct Ship Subject to supplier' stock. Orders typically ship within 2 to 3 business days.
Regularly Stocked Product This product is in stock from our supplier. Orders typically ship within 6 to 12 business days.
Warehouse Transfer Subject to supplier' stock. Orders typically ship within 6 to 12 business days.
On Order This item is on its way to our warehouse.
Back Order This part is back-ordered therefore shipping time will vary.
No Longer Available The manufacturer no longer sells this item, and we can no longer get it from any of our suppliers.
*The processing time and availability are subject to the suppliers’ stock.
Need it faster?
Feel free to reach out before placing your order if you need it faster or require further assistance! 😊
Free Shipping
All orders of $499 or more being shipped within Canada qualify for free standard shipping. Additionally, orders less than $499 qualify for an exclusive low shipping rate.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
In-Stock Products
In Stock
Items marked as "In Stock" are physically in our facility, so they're ready to ship when the order is placed. If all items in your order are "In Stock", then your order typically ships within one business day.
Other Availability Modes
We use several availability modes to most accurately identify when products will leave their home facility:
Direct Ship This product is available and will be sourced from one of our suppliers. It may take up to three business days before it ships.
Warehouse Transfer We receive the item, then we ship it to remain on time with the guaranteed delivery range chosen at checkout. It typically takes between 6 and 12 business days before it ships.
Discontinued - No longer available This product has been discontinued by the manufacturer and is no longer available.
We update our catalog daily to provide the most accurate fitment information possible. When shopping for parts, please use the “select your vehicle” car selector on the home page. Once you've selected your car, you can filter parts specific to it.
Additionally, on each product page, we have a tab for fitment information. By clicking on "Fitment", you can scroll and verify the part you are about to add to your cart indeed fits.
Furthermore, if you have a vehicle added to our vehicle selector and you are viewing a product page, you'll see fitment information below the "add to cart" button. If an item fits your car it will display "This Part Fits Your: Selected Vehicule". If an item does not fit your vehicle a message will display "This Part Does Not Fit".
A “Core Charge” is similar to the deposit you might pay for a can or bottle of soda. In many states, to promote recycling, you are charged a deposit when you purchase a can of soda and you receive your deposit back when you return the empty can. Many automotive parts have Core Charges that work the same way as a soda can deposit. The most common car parts that include a core charge are alternators, calipers, steering racks, and fuel injectors.
"MAP" pricing, or Minimum Advertised Pricing, means that the vendor set a minimum retail price that we're not allowed to violate. MAP items cannot be discounted because the decrease in price would violate that threshold.
034Motorsport
The 034Motorsport Dynamic+ Stage 1 and Stage 1+ Tuning Software for the Audi B9/B9.5 RS4 & RS5 equipped with the EA839 2.9TT V6 engine is designed to transform the driving experience of your...
034Motorsport
The 034Motorsport Dynamic+ Stage 1, Stage 2, and Stage 3 TTE710 Tuning Software for Audi B9/B9.5 S4/S5/SQ5 equipped with the EA839 3.0T V6 engine is designed to transform the driving experience of...
034Motorsport
034Motorsport is proud to offer Stage 2 and Stage 3 TCU Software for B9 Audi S4, S5, or SQ5 models equipped with the AL552 8-Speed ZF8 transmission!Flashed directly through your vehicle’s OBD-II...
034Motorsport
The 034Motorsport Dynamic+ Sway Bar Bundle Package is available for 4M/4M.5/4M8 Audi Q7/SQ7 & Q8/SQ8. The 034Motorsport Dynamic+ Sway Bar Bundle Package features perfectly-matched front and rear...
034Motorsport
The 034Motorsport 375mmx36mm 2-Piece Floating Front Brake Rotor Upgrade Kit for the B9/B9.5 Audi RS5 & 4M/4M.5 Q7/Q8 is a complete replacement brake rotor kit, designed to work flawlessly with...
Integrated Engineering
LEADING FEATURES IE engineers have completely removed all factory transmission programming shortcomings and replaced it with a tru
