The Audi RS3 2.5T's MG1CS164 ECU has locked tuners out since the day it dropped but those days are now over. We can now unlock your ECU and give access to any tuner with an AutoTuner Tool to tune the iconic Audi 5 Cylinder engine over bench!

The process is simple.

1. Purchase the unlock and send me your ECU with the included shipping label.
2. My team will unlock it in Auburn Alabama and ship it back.
3. Start tuning with the AutoTuner Tool.

We do the unlock the same day we receive the ECU. Typically, the entire process is 48 hours from the moment it leaves your hands until it returns. If you have the non-facelifted model, we do those too.

If you're just the owner of this vehicle and not a tuner yourself, any tuner with the AutoTuner Tool (which is our universal reading/writing tool for professional) can tune this vehicle. There are thousands of shops across the world with tool and a growing reseller network (including tuners) found here - Note, this does not list all of the shops using an AutoTuner Tool.

Questions? Ask below!