Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. 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 found in other helix only throttle spacers. PartNumber : afe46-38003 Description : Silver Bullet Throttle Body Spacer 1996-2004 Toyota Tacoma Base L4.2438cc Air Intake Systems::Throttle Body Spacers 1996-2004 Toyota Tacoma Base L4.2694cc Air Intake Systems::Throttle Body Spacers 1996-2003 Toyota Tacoma DLX L4.2438cc Air Intake Systems::Throttle Body Spacers 1996-2003 Toyota Tacoma DLX L4.2694cc Air Intake Systems::Throttle Body Spacers 2000 Toyota Tacoma Limited L4.2438cc Air Intake Systems::Throttle Body Spacers 2000 Toyota Tacoma Limited L4.2694cc Air Intake Systems::Throttle Body Spacers 1998-2003 Toyota Tacoma Pre Runner L4.2438cc Air Intake Systems::Throttle Body Spacers 1998-2004 Toyota Tacoma Pre Runner L4.2694cc Air Intake Systems::Throttle Body Spacers 1998-2000 Toyota Tacoma SR5 L4.2438cc Air Intake Systems::Throttle Body Spacers 1998-2000 Toyota Tacoma SR5 L4.2694cc Air Intake Systems::Throttle Body Spacers