This is what I'm talking about just incase you don't know what I'm talking about. What exactly does this thing do? It says it works if you already have another tuner, so would it actually help? Anybody got one and care to respond?

http://www.truckperformance.com/prod...ductID=1266392

 

I think I'd on that one,save up a little more money and do a set of ASM headers instead.

 

do a search there was a post a while back on this.
the feed back if I remember correctly wasn't very positive.

 

a tune would be a little more, but net you better results.