The Wait Is Over: Unlock Your TCU From Home
Unlock. Flash. Drive.
The 034SPI Boot Loader Unlock (BLU) Harness is now available, giving you direct access to unlock your Audi B9.5 S4/S5/RS5, B9.5 SQ5, 4M.5 Q7/SQ7, and 4M8 Q8/SQ8 equipped with the locked 401 boot loader AL552/952 ZF8 gearbox, and MK8 GTI, Golf R, or 8Y Audi S3 equipped with a locked 401 boot loader DQ381 G2 TCU.
No hardware swaps. No shipping your control unit. No waiting.
With the BLU harness, you can unlock your TCU from home using our integrated unlock tool within 034SPI, then install Dynamic+ TCU tuning for a complete performance upgrade.
What to Expect
- Unlock your TCU without removing or replacing hardware
- Complete the process from home or through your preferred 034 dealer
- Enable Dynamic+ TCU tuning for improved drivability, shift quality, and performance
Once unlocked, supported 034Motorsport TCU tunes can be flashed via OBD for AL552/952 and DQ381 G2 applications, making future updates fast and simple.
034SPI Update Required
A new version of the 034SPI application is now available and must be updated to perform the BLU unlock process. Be sure your app is fully up to date before starting.
Important Notes
- BLU unlock functionality only works with 034Motorsport Dynamic+ TCU software
- You must own or purchase a 034Motorsport TCU tune to utilize the unlock
- Existing Dynamic+ TCU customers receive BLU access at no additional software cost
- BLU harnesses are not VIN-locked and are not tied to an account
Supply is limited, and units are shipping as they are built.
Order now or contact your preferred 034Motorsport dealer to get unlocked.