Hey guys, not sure if its been done before, but is anyone interested in a tutorial how you can tune your own ecu for the Mk5 and Mk4 R32? I've been doing it for a couple of years as a hobby on my MK5. It is quite a bit to write up so I need more than 10 people interested. I'm not a pro at all but with the info and some initial soldering , you will be able to flash new settings, such as cam timing, ignition timing, fueling, turn off cat heating and what ever else you want in about 5 mins at a time.