aFe Silver Bullet Throttle Body Spacers TBS Ford F-150 97-10 V8-4.6 97-03 V8-5.4L Color:Silver Each kit comes equipped with

Each kit comes equipped with upper and lower roll plates

Base fuel pressure adjustable from 3-15 PSI

View the 22-403P vehicle applications to determine the legal status for each vehicle

and is reinforced with a steel girdle ring

The intake tubing is comprised of series of gradually expanding inlet pipes including mandrel-bent aluminum featuring a durable blue powder coated finish

aFe Silver Bullet Throttle Body Spacers TBS Ford F-150 97-10 V8-4.6 97-03 V8-5.4L Color:Silver Each kit comes equipped withSilver 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.