Howdy, I am new to the forum. Just a little bit about my ride: I have a 2009 Ram ST 3.7L V6 w/ 4 speed transmission. [4x2 Quad Cab] If I could go back, I would have gone with the 5.7L. ='[ But hey, Its all payed off and life is good.

I had a few questions regarding the preformance of my ride. I know theres not much I can do to increase the power but, what can I do to increase the power? lol

I have been reading about swapping the rear differential. I was wondering, How do I find out what gear ratio I have? [Maybe 3.55] I really want to get the 4.10 ratio (MOPAR) But, would that make a difference with my v6 power?

Also, what can I do to increase preformance (without voiding my warranty). My ST is bone stock, no mods what so ever.

I have a fair amount of money saved up so cash is not a problem right now (son's paying rent)