Scott g.

It's about 2x as expensive than buying one of the throttle response chips.
Despite the cost difference the immediate unquestionable performance & fuel economy advantages improvements of a pro tune. You won't sweat 5 or 6 hundred for obvious results compared to 250 for something that is sustainable etc at best. You will be much more satisfied with a real tune from livernoise or similiar.
The difference between I think I might a felt something. Opposed to the sound and smell of roasting rubber. Ain't gonna get that from a chip.
I'm confident I realize at least 50 hp difference with 89• and more when I upload and run theb93• tune.