I am all new to Jeep my prior vehicles a Hyundai accent which felled on me drove itself off the freeway over a cliff and into the ocean. I know have a 2009 Jeep Grand Cherokee Laredo repoint 7 leader I'm going to increase the performance, I invested into the Canon cold air intake should I get a throttle body spacer from what I see in mostly know what about the throttle performance switch which allows the response to be quicker. I Also wanna lift the vehicle 2" and white in the well base by 2" this is a rear wheel drive vehicle.