The CSF B58 Thermal Rejection Competition Spacer is the next level upgrade for the B58 Super Manifold (CSF #8200). Made from KIYLEX, a patented revolutionary high-performance final stage polymer. KIYLEX is as strong as aluminum and can withstand temperatures up to 1100'F. This spacer is designed to insulate the intake manifold from conductive heat transfer from the cylinder head. This thermal barrier reduces manifold temperatures which helps lower Intake Air Temperatures (IATs), improve charge air cooler efficiency, and combats heat soak. CSF is the exclusive distributor for the KIYLEX Intake Manifold Spacer for the B58 Motor.

This Part Fits:

Year	Make	Model	Submodel
2020-2023	BMW	540i	Base
2020-2023	BMW	540i xDrive	Base
2018-2022	BMW	740i	Base
2018-2022	BMW	740i xDrive	Base
2020-2022	BMW	745e xDrive	Base
2020-2025	BMW	840i	Base
2020-2025	BMW	840i Gran Coupe	Base
2020-2025	BMW	840i xDrive	Base
2020-2025	BMW	840i xDrive Gran Coupe	Base
2023-2025	BMW	M240i	Base
2022-2025	BMW	M240i xDrive	Base
2020-2024	BMW	M340i	Base
2020-2024	BMW	M340i xDrive	Base
2021-2024	BMW	M440i	Base
2024	BMW	M440i Gran Coupe	Base
2021-2024	BMW	M440i xDrive	Base
2022-2024	BMW	M440i xDrive Gran Coupe	Base
2020-2024	BMW	X3	M40i
2020-2025	BMW	X4	M40i
2020-2023	BMW	X5	sDrive40i
2019-2023	BMW	X5	xDrive40i
2021-2023	BMW	X5	xDrive45e
2020-2021	BMW	X6	sDrive40i
2020-2023	BMW	X6	xDrive40i
2019-2023	BMW	X7	xDrive40i
2022-2025	BMW	Z4	M40i
2020	BMW	Z4	M40i First Edition
2020-2021	BMW	Z4	sDrive M40i
2024	Toyota	GR Supra	45th Anniversary Edition
2021-2022	Toyota	GR Supra	A91 Edition
2023	Toyota	GR Supra	A91-MT Edition
2020-2025	Toyota	GR Supra	Base
2020	Toyota	GR Supra	Launch Edition
2020-2025	Toyota	GR Supra	Premium