Also just replaced Front, Center and Rear Differentials with Royal Purple Gear Oil!! Everyone needs to do this, car runs 100% smoother and adds 7% to 15% more HORSEPOWER!!!!!! Next Oil change Im switching from Mobil 1 full synthetic to Royal Purple and adding PURPLE ICE Radiator coolant for a lower engine running temp!!!! This stuff is amazing!!!!When I purchased the OEM 17's, I also purchased from the same guy off of Craigslist, a set of 17x7 Aluminun Mesh Rage Racing wheels. They are extremely light. These will be sweet to put some nasty racing tires on this spring!!!!