aFe Silver Bullet Throttle Body Spacers TBS Ford F-150 97-10 V8-4.6 97-03 V8-5.4L

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.
Silver Bullet Throttle Body Spacer Kit Ford F-150 97-10 V8-4.6L/ 97-03 V8-5.4L

Fitment
1997 Ford Expedition
1997 Ford F-150
1998 Ford Expedition
1998 Ford F-150
1998 Lincoln Navigator
1999 Ford Expedition
1999 Ford F-150
1999 Ford F-250 Super Duty
1999 Ford F-350 Super Duty
1999 Lincoln Navigator
2000 Ford Excursion
2000 Ford Expedition
2000 Ford F-150
2000 Ford F-250 Super Duty
2000 Ford F-350 Super Duty
2000 Lincoln Navigator
2001 Ford Excursion
2001 Ford Expedition
2001 Ford F-150
2001 Ford F-250 Super Duty
2001 Ford F-350 Super Duty
2001 Lincoln Navigator
2002 Ford Excursion
2002 Ford Expedition
2002 Ford F-150
2002 Ford F-250 Super Duty
2002 Ford F-350 Super Duty
2003 Ford Excursion
2003 Ford Expedition
2003 Ford F-150
2003 Ford F-250 Super Duty
2003 Ford F-350 Super Duty
2004 Ford Excursion
2004 Ford Expedition
2004 Ford F-150
2004 Ford F-150 Heritage
2004 Ford F-250 Super Duty
2004 Ford F-350 Super Duty
2005 Ford Excursion
2005 Ford Expedition
2005 Ford F-150
2006 Ford Expedition
2006 Ford F-150
2006 Lincoln Mark LT
2007 Ford F-150
2007 Lincoln Mark LT
2008 Ford F-150
2008 Lincoln Mark LT
2009 Ford F-150
2010 Ford F-150