aFe Silver Bullet Throttle Body Spacers TBS Ram 1500 TRX 2021 V8-6.2LThis Silver Bullet throttle body spacer is designed with a smooth CNC machined interior for the smoothest air flow possible and increased manifold volume. Dual ports are easily accessible to use as vacuum ports or for any other accessories, and can be sealed with the provided 1 8 NPT plugs when not in use. This Silver Bullet throttle body spacer is precision machined from 6061 T6 billet aluminum for lightweight, high strength, and perfect fit and