I run a Procharger and I have had zero problems with it and I have put 14000 miles on the kit. Radix will give you a lot of out the hole torque which you can use to your adavantage with that all-wheel drive and its more of a buy and install and you ready kit. Were as the Procharger you will half to get tune and buy bigger injectors. I would also look into Turbo's to those kits have a lot of potential in them and can make some very big numbers.