i just put one on my truck. Bought it off ebay. I love the sound, and the fact that it has gotten rid of the hesitation that used to be there.
if i can find the link ill through it in here, but its dark outside right now so pics of it installed are kinda crappy.
I had everything in the kit i needed minus a rubber sleeve, and 2 pipe clamps. i think at least. very east to install though.