Hey guys, new to the forum. Had a question for all of you. I want to put a tune on my 06 brm tdi. I am new with these tdi's and am thinking of doing a Malone stage 1 or 1.5 tune. With malone i can send in my ECU instead of paying money for their flashzilla v3. I am wondering, If I purchased an used ECU and sent that to them for tuning, could I replace my stock ECU with this used and newly tuned one? What sorts of issues could I run into while trying to do this? Also, given my engine has some miles on it, I want to do some "cheaper" mods on it without putting a lot of money into it. Any ideas would be great!