aFe 46-34010 Silver Bullet Throttle Body SpaceraFe 46 34010 Silver Bullet Throttle Body Spacer The Silver Bullet throttle body spacer is constructed from precision machined 6061 T6 billet aluminum and is designed using a serrated helix design that creates turbulence in the airflow at the point just prior to entry into the engine optimizing the combustion cycle. This turbulence helps the air fuel charge burn completely providing increased horsepower, torque and improved throttle response. During