FAST® Fuel Rails are machined from 6005A-T5 aluminum and feature a large 11/16" inside diameter for consistent pressure at each fuel injector. Black anodizing helps to promote heat dissipation and prevent oxidation. Offered in 18" (Part #30700218B), 24" (30700224B), 36" (307002236B), 48" (30700248B) and 72" (30700272B) lengths, FAST® has you covered no matter the application.