Throttle Body Spacer, Rugged Ridge, Jeep Wrangler (JK) 07-11 3.8L.The Rugged Ridge Throttle Body Spacer moves the throttle body 1/2 inch away from the intake manifold. The move helps optimize power and performance by drawing in colder denser air. The large bore design allows your intake to inhale a larger volume of air producing more horsepower and torque. It features solid aluminum construction with a slick anodized black finish, and is a bolt on performance adder for 3.8L engines.