aFe Silver Bullet Throttle Body Spacer 11-12 Ford F-150 V6 3.5L (tt) EcoBoost 2007-mazda-rx-8-base-esi2906777 An additional wire is included

An additional wire is included for adding an optional on/off solenoid to stop fluid flow when the system is inactive

Prolite flywheels are preferred for road racing or rally racing

304 Stainless Steel 4

Allows fine tuning pump/drive b elt alignment

aFe Silver Bullet Throttle Body Spacer 11-12 Ford F-150 V6 3.5L (tt) EcoBoost 2007-mazda-rx-8-base-esi2906777 An additional wire is includedSilver 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.