
yes Jb4 is pretty great brings the car alive. i currently have it running i can tell you its very reliable. I use to run map1 but time to time i would fill up 93 and run map 2or3 for extra fun it hits 13-14 psi boost no problem. I would recommend the Bluetooth module so you can monitor and change maps on the phone (they do charge $30 for the app too). Also look into the afr harness extension (its a custom cable someone makes on the forums in the pic below) if you don't want to tap the afr cable directly.
I did look around if i can find you a harness for it i had no luck, also burger motorsport is charging $350 for the harness alone which is alot seeing that you can easily find whole kits with JB4, bluetooth module and afr harness for $200-300 or less here. I personally got mine for $150 with bluetooth and afr harness extension. All MQB vehicles (Groups 1 and 2, plus others like the A3/S3/GTI/TSI/R basically same engines) JB4 work for our cars just need to change frimware in app or pc they use same engine harness.
You can buy a JB4 easily on the forums (I personally recommend after the price i saw just for additional parts you will need to run the board i have) or if you want mine you can have it for free but the harness n Bluetooth module will run you over $450 which is pretty steep.
I hope this information can help you decide better. Whichever route you go i will get you up and running no $$
Its not a problem i can come pickup the wheels whenever you get jb4 kit

I will be happy to help
Let me know if you any questions