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, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.

Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.