If its just the slip ons, and it idles normal after you install the ecu, I would not pay to have this done.
It is just to rest the throttle position. for your idle speed. Most of the Idle speed issues are with the full sys. I was charged 1/2 hr, and thats what it took. But I saw no bennefit, other than loosing $50. Thats like 25 pounds in the UK.?
Hold the phone. $50 to loose 25 lbs? This may be my best mod yet.
Oh, but we are not in the UK.