SLP LM + ?Headers
I get lots of complements on mine as it is from car people. I think mainly cause it is just SO loud. Driving it daily, the tone just gets on my nerves. I need a deeper more musclecar sound. Right now it sounds alot like a chevy truck with headers and straight pipes. Which is pretty much what this setup is.
Handhelds are pretty pointless. Best bet is to have it on a rolling road, aka a chassis dyno. They will then tune it with a custom tune. There are several different software packages out there (LS1Edit, HPTuners, EFILive) and they are all available to buy if you want to be more serious and do some of the tuning yourself at home with a lap top.
Are you M6 or A4?
Having your own tuning software can be great espcially on an auto as you can mess around with the shift points and lock up when you get a different torque converter.





