I'm thinking that some cams along with some adjustable cam gears will be my next upgrade to my hybrid. All I have done to it now is CAI, Header, Exhaust, and pullies. I heard that CTR/ITR cams are he best bang for the buck, And I think I read that its good to have the CTR intake cam and ITR exhaust cam, but I may have that backards. If I did get this setup, would this be reliable and safe for the engine, or is it a must that I upgrade the valve springs, etc. Also, how much hp would these cams add, anyone have any dyno results? And What's a good price range for the cams, thanks