Looks good and my 2.4 performs even better. The directions were easy to follow but had a bit of difficulty fitting the two back bolts into their very tight locations. Also the Mass Air Flow sensor holes were just about 3/64" off making that a bugger to secure, but I finally got it done with a small rat-tail file. Overall thrilled with the product. Love K&N and have installed their 69 Typhoon CAI on my Mustang too.
Makes it loud.
I don't have a Dyna so I don't know if it provides more ponies or not. I can say my gas mileage went DOWN 1 mpg. It is a lot louder not especially in the cab of the pickup you can hear the engine growl now, not sure if I like this. As for install it was super easy I put it on in about 30 minutes very simple and the instructions were pretty good.