I'm new to the tdi scene with a new used purchase of my 06 vw golf. I was hooked on it from the moment I drove it. I'm up grading the turbo to a Garrett VT1749v and I'm also putting a bar4 map on it. I bought a tuner chip from Thornton chips and tune. MY question is do I need to do anything else to have this run properly, I know that a program tune would get me max performance from it but im short on funds at the moment and dont know anyone who has a programmer. PLEASE HELP MY TDI FRIENDS.