AFE Silver Bullet Throttle Body Spacer 2009-2023 Dodge Ram 1500 /2019-2023 RAM 1500 Classic V8 HEMI (5.7L)Silver Bullet throttle body spacers create turbulence in the air flow just prior to entry into the engine increasing horsepower, torque and improving throttle response. Silver Bullet throttle body spacers are constructed out of durable 6061 T6 billet aluminum and use a unique serrated helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Serrated Helix Design: The serrated