A mod post is a good idea Trevor, but we can all help each other. The more people we get that want any one mod, the better of a deal we all get.

If I had to select from my mods for a "step 1", I would do the tune and CAI as a single upgrade. Even the Diablo "canned" tune is great compared to the stock tune. Once that is installed you can firm up the transmission shifts, so you feel like your in a muscle car.... The tuner will allow you to bring up the rev limiter and at WOT you will extend shifts all the way to 6400 rpm if you like.

I have upgraded a valve body for the transmission to correct the slight clutch pack overlap in the 1-2 shift. I will install at the same time as the converter and let you know If it does what it should.

I avoid talking about the converter because its my profession, and I am not a vendor on this board. Lets just assume you purchase a converter equal to mine....
The converter is the buffer on the 2008 Challengers. I believe Dodge set the clearances in excess to protect the car from the driver during the warranty period. They did us NO favor. This is also the reason behind offering only the automatic in the first year. The converter will slip prior to something breaking. At a cost of 14+% slippage, this causes heat, and robs power on the way to the tires. No metal connects the crank to the tires.... Only the converter (fluid coupling).

Well lets see if this much will post without error...