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 : afe46-38002 Description : Silver Bullet Throttle Body Spacer 2003-2008 Toyota 4Runner Limited V6.3956cc Air Intake Systems::Throttle Body Spacers 2003-2008 Toyota 4Runner Sport V6.3956cc Air Intake Systems::Throttle Body Spacers 2003-2008 Toyota 4Runner SR5 V6.3956cc Air Intake Systems::Throttle Body Spacers 2007-2008 Toyota FJ Cruiser Base V6.3956cc Air Intake Systems::Throttle Body Spacers 2008 Toyota FJ Cruiser Trail Teams Special Edition V6.3956cc Air Intake Systems::Throttle Body Spacers 2007 Toyota FJ Cruiser TRD Special Edition V6.3956cc Air Intake Systems::Throttle Body Spacers 2014 Toyota Tacoma Base L4.2694cc Air Intake Systems::Throttle Body Spacers 2005-2014 Toyota Tacoma Base V6.3956cc Air Intake Systems::Throttle Body Spacers 2014 Toyota Tacoma Pre Runner L4.2694cc Air Intake Systems::Throttle Body Spacers 2005-2012 Toyota Tacoma Pre Runner V6.3956cc Air Intake Systems::Throttle Body Spacers 2014 Toyota Tacoma Pre Runner V6.3956cc Air Intake Systems::Throttle Body Spacers 2005-2012 Toyota Tacoma X-Runner V6.3956cc Air Intake Systems::Throttle Body Spacers 2005-2012 Toyota Tundra Base V6.3956cc Air Intake Systems::Throttle Body Spacers 2005-2011 Toyota Tundra SR5 V6.3956cc Air Intake Systems::Throttle Body Spacers