do88 charge cooler (intake) manifold for the BMW F-series B58 Gen 1: replaces the factory manifold with integrated water-to-air charge cooler to fight heat soak. Outlet tank ready for auxiliary port injection (fuel rail sold separately; Injector Dynamics ID1050x or Bosch EV14 Compact, blanking plugs included), 1/8in NPT port per runner for methanol or nitrous, 3-port measurement / vacuum pad, and a thermal-barrier spacer against cylinder-head heat.