do88 Charge Cooler Manifold - BMW B58 Gen 1 (F2x/F3x/G3x) 2014-2021

Cast aluminum intake manifold with an integrated air-to-water charge air cooler that replaces the crack prone plastic OE unit on B58 Gen 1 engines. The bar-and-plate air-water core is 102 mm (4 in) thick with 11 water cooling rows against six on the OE cooler, fed by CFD-developed cast end tanks. do88 measured 873 CFM at 0.1 bar (1.45 psi) pressure drop against 615 CFM for the OE manifold, 42 percent higher, and 26°C inlet air temperature against 40°C. On a 2017 BMW 340i running bootmod3 Stage 2+ the kit gave 5 hp peak, 18 hp midrange and 28 Nm. Each cylinder runner carries a 1/8 in NPT port for nitrous or water/methanol injection, the outlet tank is pre-configured for the optional auxiliary port injection fuel rail, and an included thermal barrier spacer with FKM silicone O-rings isolates the manifold from cylinder head heat. Installation is plug and play and the OE engine cover still fits.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy