does anybody have a 1998 mustang gt with a HYPERTECH POWER PROGRAMMER 3 model 41037??? and if so did you notice a big diffrence? was it worth the money? and will i have to keep on programing it or will it save the program?
Most people on here use SCT. SCT will save your tune, and they perform many other cool features. www.sctflash.com and I would reccomend www.brenspeed.com for the tune.