Hi, Have a 2002 allroad. I have read a lot of varying posts re tunining/chipping/re-mapping options. I would like to get a bit more power and low-down torque out of the engine without putting it under too much strain i.e. I dont want to overtune and have something fail. I was wondering about peoples different experiences - what works well, who did the work and how much did it cost? Appreciated, C.