CSF Gen 2 B58 Race X Charge-Air-Cooler Manifold - Thermal Black Finish

On the Gen 2 B58 the charge-air cooler sits inside the intake manifold, so the manifold decides how cool and how evenly the boosted air reaches each cylinder. CSF's Race X replaces the factory plastic part with a fully TIG-welded billet aluminum unit and a much bigger air-to-water core. It is aimed at high-boost builds, and CSF reports that an A90 Supra picked up about 34 whp and 82 lb-ft on a dyno when swapping from CSF's earlier 8200 manifold to this one, with nothing else changed.

What you get

• Bigger bar-and-plate core. It is 25% larger than the core in CSF's 8200 manifold and has 15 water rows, against 6 in the factory part.
• Even airflow to all six cylinders, helped by an air divider built into the inlet tank.
• Large -16 ORB water inlet that works with dual-pass (CNC plug included) or single-pass and ice-box setups, plus two -4AN breather ports on the rear water plate.
• Fuel and injection provisions: an extruded -8AN fuel rail for returnless or full-loop systems, 7 mm injector bores with six anodized injector hats, a 1/8 NPT port on every runner for methanol or nitrous, and a sensor pad with extra 1/4 and 1/8 NPT ports.
• KIYLEX thermal spacer, which CSF says can cut intake manifold temperatures by up to 15%, along with brackets, bolts, fittings and diagrams.
• Thermal Black heat-dispersion Cerakote finish, with a recess that lets you change the spin-on oil filter without pulling the manifold.

Good to know

• CSF calls this a racing part for experienced B58 technicians, and some modification is needed to install it. 48V mild-hybrid cars need a separate spacer plus shaving of the head casting and alternator.
• It does not fit the B58TU2 (B58N) engine, and the port-injection block-off bungs are sold separately.

Brand: CSF · Part #: 8400B

Ships from the brand or distributor, usually in 3-7 business days.

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.