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5" diameter Axle-Back system features the mellow Touring sound level and single 3
aluminum skid plate is included with the bumper and helps to guard your sway bar disconnect from damage
ACT's sintered iron race discs offer the highest torque capacity of all ACT race discs and have ultra-high heat capacity
Manifold Body Spacers offer thermal insulation between the cylinder head and the intake plenum – keeps the air in the intake cooler and denser
aFe Silver Bullet Throttle Body Spacers TBS Ford Ranger/Explorer SporTrac 01-09 V6-4.0L 2021-jeep-wrangler-unlimited-high-altitude-esi1400624 5" diameter Axle-Back system featuresSilver 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.
