thanks for all the replies see this is saving me hours of grueling search...

any other tuner info is welcome..

and i read in the brochure when i bought my truck said the 08 4.7 had 310hp am i correct in assuming thats crank hp not rwhp?

thanks
wes

 

Yup that's crank HP. And 330 TQ.

 

Don't even ask what your rwhp might be...you won't like the answer.

 

maybe 245 hp? lol, there, i said it

 

lol yeah i figured that how can i get 300 rwhp most reliable without a loud exhaust

 

you will need alot more than just exhaust. alot....headers, cam, gears..

 

I think he meant without getting a loud exhaust... lol. geeze silver...

 

(edit) Superchips also makes a tuner for the '08 4.7. I just ordered one today. I believe it is the Flashpaq 3865. (edit)

The Superchips programmer did not work for my truck and I was told by Superchips support that it would be several months before they have a calibration file for the 08 4.7l. I sent it back and bought the Hypertech Max Energy. I notice a difference in performance, but not as much as I had expected.

 

The 08 4.7L is a different animal that the 07 back, so there isn't alot for it yet. The heads were redesigned for the big boost in power, so aftermarket tuning and forced induction will take some time to adapt.
You might check here for parts. Not sure about the 08 yet.http://airram.com/parts.php?categoryid=646

 

does that superchip 3865 work with my 2008 4.7l flexfuel. The website says it supports 4.7l and 4.7l HO and I was trying to figure out what the 4.7l HO meant. Is that flex fuel.