I have one, but as soon as I had it installed the ringlands in the 7 and 8 cylinder went bye bye. Pros, makes a ton of power, not really that loud at idle flows 1700 cfm, I think they can push upwards of 27 psi. I purchased it because I don't want to have to upgrade head units and with the Novi 2000 I wont have to do that. Cons are the installation directions suck! Also, lots of power can easily blow the engine if not prepped before hand. I should have mine back by the end of the week. You really should check out www.modularpowerhouse.com They have all sorts of customers, with the Novi 2000. They call them Mongoose kits (can get a Vortech or the Novi).