A Throttle Body Spacer is an add-on to your air intake area. Originally used in the days of vehicles with carburetors, a throttle body spacer would allow additional air mix to be present to allow for additional power, or was used to "disturb" the air in such a way so that the fuel would form smaller droplets.
In current fuel injected vehicles, the spacer would allow for a greater amount of air contained within the throttle body assembly so that the engine would not have to work as hard in getting the air into the engine.
In recent dyno testing, this throttle body spacer produced 10 additional ponies and 14 pound feet of torque on the popular BMW E46. The Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle that is present in helix only spacers.
AFE, or Advanced Flow Engineering, was created with one purpose in mind, to create high performance air intake systems and filters for the automotive industry. They were founded back in 1999 with a team of engineers, machinists, production and sales that helped the company grow. They maintain the fact that they produce quality goods at quality prices.
Great power per dollar performance.
This Part Fits the Following Vehicles