what kind would yall use, or do they really make a differance

 

What do you mean by "modules"?

 

chip

 

Don't get a chip. Chips are for dipping. Either get a hypertech programmer, which allows you to tune your own computer or find a Mopar Performance PCM for your truck. Just as a warning, the Mopar PCM requires premium fuel. In my opinion, it's worth it. Might not be to you though.

 

it gets premium now

 

I see, well to be honest with you...you're wasting your money. The truck isn't setup to run Premium, and as such isn't gaining anything by doing so. It's just making your wallet lighter...or your bank account emptier than it would normally be. Here's an article on it: http://www.truckblog.com/story-447-f...s_fuel_economy

If a higher cost in gas isn't a problem (apparently), I'd say go with the mopar PCM or the hypertech programmer. The mopar PCM MUST run premium and the hypertech can be setup to. IIRC, it may actually come with a pre-programmed flash for it. Someone with a programmer would have to chime in on that though, as I don't know much about em. I have a programmer for my Grand Prix, but they don't make one for my truck. [:'(]

 

how much does the mopar run. christmas is coming

 

A mopar performance PCM will run you $300-$400.