Hub-centric fit
Machined to center on the BMW hub so the spacer sits squarely between the wheel and hub face.
Machined to center on the BMW hub so the spacer sits squarely between the wheel and hub face.
Available sizing lets you fine-tune wheel position for appearance, brake clearance, or tire fitment.
Includes extended wheel bolts matched to the spacer thickness instead of reusing short factory bolts.
Wheel spacers change wheel position and hardware engagement. Recheck torque after the first heat cycle or drive.
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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.
The addition of the Thermal Rejection Spacer is especially useful for Drag/Roll-Racing Events where vehicles typically sit in staging lanes in-between racing. This causes extreme heat soak to the liquid-to-air manifold as there is not sufficient airflow passing over the front mount heat exchanger when the car is idling (which is responsible for cooling the charge air fluid that runs through the manifold). This causes the starting IATs on subsequent runs to be higher than on the initial run.
The B58 Super Manifold is made from Billet Aluminum and 100% Tig Welded for strength, which allows it to be able to withstand higher boost pressures compared to the OEM plastic manifold. Aluminum has higher thermal conductivity than plastic resulting in a higher rate of heat transfer between the cylinder head and manifold. Adding the Thermal Rejection Spacer reduces heat transfer between the two metal components (cylinder head & manifold). The spacer absorbs the heat from the cylinder head and dissipates it rather than transferring it to the manifold.
The Thermal Rejection Competition Spacer was designed for vehicles competing in motorsports who demand the absolute best cooling in order to gain a competitive edge. With that being said, there are significant advantages to adding this spacer upgrade to any vehicle with the CSF B58 Super Manifold installed.
| Year Range | Make | Chassis Code | Model | Trim | Engine / Trans / Etc | Notes |
|---|---|---|---|---|---|---|
| 2020-2023 | BMW | G30 | 540i | - | Turbocharged 3L L6 | - |
| 2020-2023 | BMW | G30 | 540i xDrive | - | Turbocharged 3L L6 | - |
| 2018-2022 | BMW | G11/G12 | 740i | - | Turbocharged 3L L6 | - |
| 2018-2022 | BMW | G11/G12 | 740i xDrive | - | Turbocharged 3L L6 | - |
| 2020-2022 | BMW | G11/G12 | 745e | - | Turbocharged 3L L6 | - |
| 2020-2022 | BMW | G11/G12 | 745e xDrive | - | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G14/G15 | 840i | - | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G14/G15 | 840i Gran Coupe | - | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G14/G15 | 840i xDrive | - | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G14/G15 | 840i xDrive Gran Coupe | - | Turbocharged 3L L6 | - |
| 2023-2025 | BMW | G42 | M240i | - | Turbocharged 3L L6 | - |
| 2022-2025 | BMW | G42 | M240i xDrive | - | Turbocharged 3L L6 | - |
| 2020-2024 | BMW | G2X | M340i | - | Turbocharged 3L L6 | - |
| 2020-2024 | BMW | G2X | M340i xDrive | - | Turbocharged 3L L6 | - |
| 2021-2024 | BMW | G2X | M440i | - | Turbocharged 3L L6 | - |
| 2024 | BMW | G2X | M440i Gran Coupe | - | Turbocharged 3L L6 | - |
| 2021-2024 | BMW | G2X | M440i xDrive | - | Turbocharged 3L L6 | - |
| 2022-2024 | BMW | G2X | M440i xDrive Gran Coupe | - | Turbocharged 3L L6 | - |
| 2020-2024 | BMW | G01 | X3 | M40i | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G02 | X4 | M40i | Turbocharged 3L L6 | - |
| 2020-2023 | BMW | G05 | X5 | sDrive40i | Turbocharged 3L L6 | - |
| 2019-2023 | BMW | G05 | X5 | xDrive40i | Turbocharged 3L L6 | - |
| 2021-2023 | BMW | G05 | X5 | xDrive45e | Turbocharged 3L L6 | - |
| 2020-2021 | BMW | G06 | X6 | sDrive40i | Turbocharged 3L L6 | - |
| 2020-2023 | BMW | G06 | X6 | xDrive40i | Turbocharged 3L L6 | - |
| 2019-2023 | BMW | G07 | X7 | xDrive40i | Turbocharged 3L L6 | - |
| 2023-2025 | BMW | G29 | Z4 | M40i | Turbocharged 3L L6 | - |
| 2020-2025 | BMW | G29 | Z4 | - | Turbocharged 3L L6 | - |
| 2024 | Toyota | A90/A91 | GR Supra | 45th Anniversary Edition | Turbocharged 3L L6 | - |
| 2023 | Toyota | A90/A91 | GR Supra | A91-MT Edition | Turbocharged 3L L6 | - |
| 2020-2025 | Toyota | A90/A91 | GR Supra | - | Turbocharged 3L L6 | - |
| 2023-2025 | Toyota | A90/A91 | GR Supra | Premium | Turbocharged 3L L6 | - |
| 2024 | Toyota | A90/A91 | GR Supra | Premium 45th Anniversary Edition | Turbocharged 3L L6 | - |
Cooling Systems and Flexibles, Inc. (CSF) warrants CSF’s High-Performance Cooling Systems, under normal use and service, to the original purchaser of the vehicle in which the product was originally installed. For more information and details please visit CFS Page.
SKU# 8200S Warranty Term: Limited Lifetime
Wheel spacer kit for BMW chassis. Confirm bolt pattern, hub bore, wheel offset, tire clearance, and bolt-seat style before ordering.
Confirm supporting hardware and calibration requirements before installation.
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