i have a 2005 cummins and i have a cold air an afe intake manifold exhaust and a smarty jr i am looking at getting an mp8 to stack on top of it its only 100 horse so i was just wondering what you guys were thinking in your opinions thanks

 

What do you have for other mods to the truck? What transmission?

 

it is the stock 48RE trans and i have an edge cts insight monitor as gauges

 

Since you already have a Smarty Jr., I would highly suggest you upgrade your transmission before buying another programmer. The stock trans will hold about 40 hp over stock before you start severely shortening its life.