First off, if you plan on racing your truck the Co Pilot is worth it, knocked 3 tenths off for my truck. And here is the proof in the pudding as too how bad a bullydog is. I have dyno'd with diablosport, ppe hot+2 and bullydog with a custom tune... 1014 diablo, 991 ppe,, 931 bullydog.... and the smarty, while I dont have dyno proof, is definatly stronger than the diablo.
Kevin