aFe Silver Bullet Throttle Body Spacers TBS Ford Trucks 99-04 V10-6.8L

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.Installation InstructionsThis Part Fits: Year Make Model Submodel 2003-2005 Ford Excursion Eddie Bauer 2000-2005 Ford Excursion Limited 2004-2005 Ford Excursion XLS 2000-2005 Ford Excursion XLT 2004 Ford F-250 Super Duty Harley-Davidson Edition 2004 Ford F-250 Super Duty King Ranch 1999-2004 Ford F-250 Super Duty Lariat 1999-2004 Ford F-250 Super Duty XL 1999-2004 Ford F-250 Super Duty XLT 2004 Ford F-350 Super Duty Harley-Davidson Edition 2003-2004 Ford F-350 Super Duty King Ranch 1999-2004 Ford F-350 Super Duty Lariat 1999-2004 Ford F-350 Super Duty XL 1999-2004 Ford F-350 Super Duty XLT