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The serrated/helix design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber, resulting in increased performance and improved throttle response. The serrated/helix combination design also reduces intake whistle that occurs with helix-only designs (US PAT 07055513).
These Silver Bullet throttle body spacers are precision machined from 6061-T6 billet aluminum for lightweight, high strength, and perfect fit and finish. They use all factory mounting locations, providing a hassle-free installation. The supplied gaskets provide a perfect seal.
Please Note: Will work with aFe's & Takeda intakes (P/N: TR-3017P; TR-3009P; TA-3016P & TR-3008P).