When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Keep in mind if you do not have head studs, you will not want the higher HP tuning for your truck.
I agree with doubledee, if you want more, go with the X-Cal. Some prefer shift on the fly which is OK.
To clarify stacking, each programmer or in-line device changes the injection timing. Two programs with increased injection timing will result in a disaster. The beauty of custom tuning is the user can choose what he wants. Tow file, mild street, or light your hair on fire....but be prepared to fix what you break on your own dime.
I like it a lot. It gets the job done, I can monitor fuel pressure on it and it's on the pillar and I get to keep my grab handle which I use 90% of the time I get into the truck. If you're thinking about getting one call amjperformance.com, they are a site sponsor and I doubt any other vendor anywhere could beat their price on it.