CSF B58 Thermal Rejection Competition Spacer - Toyota GR Supra / BMW

CSF B58 thermal rejection competition spacer, a 6.5mm intake-manifold spacer for the BMW/Toyota B58 motor (use with CSF Super Manifold #8200). It is molded from KIYLEX, a high-performance polymer as strong as aluminum that withstands up to 1100°F, and acts as a thermal barrier between the cylinder head and intake manifold to cut conductive heat transfer. This lowers manifold and intake air temperatures (proven up to 15% lower), improves charge-cooler efficiency and fights heat soak. Self-sealing — no gaskets needed; includes install hardware and instructions. Does not fit the OEM manifold.

Specifications

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