Just wondering if a programmer canned tune (such as from a Diablosport) really does anything. I have a 2010 SRT8 that is bone stock. I'm new to this "new school" hot rodding so I'm not familiar with these things. Most of the magazine articles and so on don't really say how much this one change really helped. They'll say things like it "seems to improve throttle response" and stuff like that but I've seen painfully little hard data when it comes to these simple types of modifications. I'm thinking of doing just a CAI and maybe one of these tuners. However, I can't see how adding maybe 15 hp really justifies something like $700.00 cost between the two items.