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The CSF Gen‑1 B58 billet charge‑air manifold is a plug‑and‑play upgrade for Gen‑1 B58 BMW engines that replaces the OEM plastic manifold with 100% TIG‑welded billet aluminum. It features a motorsports‑grade bar/plate core with double the cooling rows, KIYLEX thermal rejection spacer to reduce IATs, integrated air divider, top‑feed port injection provision with included optional fuel rail, easy spin‑off oil filter access and a full hardware kit.
CSF BMW Gen 1 B58 Charge-Air-Cooler Manifold - Machined Billet Aluminum
