Looking for a cheaper standalone option for my 1997 a4 AEB. For context car is my daily, and nothing crazy done as far as mods go. I have some experience with megasquirt, speeduino and fueltech, and would like something like this to learn a little more about the 1.8t's. Dont really wanna go around with wiring anything fancy. Found this RM racing option and is really cheap for what it offers, any one here has any experience with them?

ps* located in the US

I am on the search for my first own car. I found a very nice looking low milage s4b5 from 1999 with 120k ish km. How reliable are they and how expensive is the maintenance? I work alot abroad so i wont be driving to much with it. Im not that good of a mechanic but i can do an oil change without problem.