aFe Silver Bullet Throttle Body Spacers TBS Ford Ranger/Explorer 90-01 V6-4.0L (Excluding SOHC) 2020-polaris-rzr-xp-4-1000-base-esi9047529 System features Sound Suppressing Exhaust

System features Sound Suppressing Exhaust Valves

V6 232 - 256 1982-on Engine Crankshaft Main Bearing Set

5" long extension pipe kit is used to adapt the BORLA 145

75" diameter X-Pipe with Mid-Pipes is designed for use with Borla(r) Axle-Back systems ONLY

aFe Silver Bullet Throttle Body Spacers TBS Ford Ranger/Explorer 90-01 V6-4.0L (Excluding SOHC) 2020-polaris-rzr-xp-4-1000-base-esi9047529 System features Sound Suppressing ExhaustSilver 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.