Originally Posted by
Mrmiata
He has a base model.. not a 6. The tune would be at the top of my list personally. Below is from Needswing under SRT6 add...
Our original Cold Air Intake Kit is a beautiful piece, customers have seen up to 35whp gains and 0.2-0.3 tenths improvement in their ¼ mile ET’s.
Mr. M, I'm going simply by what 1/4 mile results I've read here on the forum. Gary's times were just under a 1/2 sec. improvement with his automatic, and no other changes except the NW CAI (if I remember correctly). Steve noticed the same improvement on his 6 spd. roadster, and I think I've read about other's who had similar results as well.
I know the CAI costs more than the tune, but I think it offers greater (stand alone) results. Of course, installing both is the best way to go.

If I cared about drag racing, I'd have both mods on my car. But other than pulling hole shots on people at traffic lights, and having fun at the Dragon, my racing days are over.