I am looking to do some performance additions to my Raptor and am leaning toward the Hennessey 600 kit but have started looking around before I take the truck to their shop. it is just so expensive compared to the Whipple stage 1 kit and similar packages like the Mountunes MRX 600 kit. The Whipple and Mountunes kits seem to almost add as much hp/torque as the Hennessey for so much less. I have called some of the companies that sell the kits and really didn't feel like they knew what they were talking about as I asked questions. I probably got a call center but it sure didn't help me as I contemplate what to add. I just want a reasonable amount of additional power....not racing or hard off roading but to make it more fun to drive by being faster off the line and 0-80..,..mostly on road with some offroad. Does anyone on here have experience with the various performance packages and can say which of them they would reccomend as an alternative to the Hennessey and why(price differential and time for install are the reasons I am initially looking at possible alternatives to the Hennessey). As an aside, Hennessey has already done something for me and were great to work with. Probably would have already done the upgrade but I don't feel like being without my truck right now for at least 3 weeks for the install. Thanks for any feedback!!