CSF Thermal Black Race X Charge-Air Cooler Manifold for BMW B58 Engine (Gen 2) [8400B]
CSF’s release of the Gen 2 B58 “Super Manifold” for G-Chassis BMW and Toyota Supra was a resounding success, quickly becoming the preferred choice for racers and enthusiasts seeking maximum performance from their B58 engines. Over the past two years, the Gen 2 B58 has been pushed to its limits, and while the “Super Manifold” has proven its durability in countless 1000hp builds, the demand for an even higher-performing solution persisted. CSF is proud to introduce the “Race X” Charge-Air-Cooler Manifold, a cutting-edge collaboration with VF Engineering and Custom Plenum Creations. Building on the proven performance of the “Super Manifold,” the “Race X” incorporates new race-focused features and specifications tailored for high-level motorsport competition and extreme racing applications. The “Race X” boasts a 25% larger core, additional parameter ports, and an optimized water flow system, with configurations for both dual and single pass setups. It also includes a new front port, specially designed for ice box setups. As the largest and most versatile manifold available, it has been race-tested on some of the fastest B58-powered drag cars globally, making it the ultimate solution for those pushing the Gen 2 B58 to its absolute limits.
Design and Engineering
- The extensive research and development invested in the Super Manifold provided a strong foundation for the creation of the Race X Manifold. Combined with real-world testing feedback from race teams and tuners, CSF gathered all the necessary insights to design this advanced manifold. The primary objectives were to enhance airflow and cooling capacity significantly. Utilizing Computational Fluid Dynamics (CFD) software, CSF’s engineering team worked diligently to develop a manifold that meets the rigorous demands of competitive motorsport drivers while incorporating an array of advanced features.
Biggest/Best Core in the Industry
- When the B58 engine exceeds 1000hp, most aftermarket manifolds struggle to keep up with airflow and cooling demands. To overcome these limitations, CSF developed the Race X Manifold with a 25% larger core. Featuring 15 cooling rows, the Race X Manifold delivers superior airflow and significantly improved cooling capacity to handle the demands of high-performance applications.
Dual or Single Pass
- CSF designed the front water end plate of the Race X Manifold to support both single-pass and ice box configurations. Featuring a -16 ORB bung, the largest available on any aftermarket B58 manifold (compared to the -12 fitting used by competitors), this innovation maximizes water flow. To further optimize performance, CSF partnered with industry-leading fitting and hose specialists Brown and Miller Racing Solutions (BRMS). CSF recommends using BRMS fittings, with a maximum angle of 120 degrees, as they are engineered to eliminate flow restrictions and are widely recognized as the top choice in the motorsport industry.
Top Feed Port Injection with Included Fuel Rail
- The CSF Manifold is equipped with an integrated extruded fuel rail mounted on the outlet side. This AN-8 fuel rail includes a -8 internal hex plug fitting, offering compatibility with both returnless and full-loop fuel system configurations. Each cylinder’s fuel rail aperture features a 7mm opening, optimized for compatibility with most high-performance injectors. For best performance, CSF recommends Injector Dynamics (ID) injectors, the most commonly used for this engine. The supplied hardware kit includes anodized CNC-machined injector hats (quantity 6) designed to accommodate short-height injectors, commonly referred to as “shorties.”
- Individual Nitrous / Methanol Injector Ports:
- The CSF manifold includes a 1/8″ NPT port on each cylinder runner, enabling the use of nitrous or methanol injection. This design ensures precise spray control and even distribution across the engine for optimal performance.
Expanded Vacuum and Parameter Pad
- The CSF Race X Manifold incorporates a port pad machined into the tank on the inlet side, providing flexibility for measuring additional parameters or serving as an extra vacuum source. It features two additional 1/4″ NPT ports alongside the standard three 1/8″ NPT ports, all of which can be sealed using plugs included in the hardware kit if not utilized. Additionally, CSF designed the manifold with a recessed area at the rear to allow easy access to the spin-off oil filter. This thoughtful feature eliminates the need to remove the manifold for routine oil changes, streamlining maintenance for users.
Air Inlet Divider
- The CSF manifold features a unique air divider welded into the inlet-side tank, an exclusive design element. Recognizing the length of the manifold, engineers at VF Engineering ensured consistent air volume and velocity to all cylinders. The air divider optimizes airflow distribution, delivering equal airflow and cooling performance across all cylinders. This ensures that cylinders four, five, and six at the rear of the manifold receive airflow equal to that of cylinders one, two, and three at the front, maximizing overall performance.
Breather Ports for Inlet / Outlet of Water Tanks
- The CSF Race X Manifold includes two 1/8″ NPT ports on the top of the rear water plate. These ports can be utilized to measure inlet and outlet water temperatures or as breather ports to assist with the bleeding procedure. The supplied hardware kit includes 1/8″ NPT plugs for unused ports. CSF recommends following the OEM BMW or Toyota bleeding procedure, which typically takes approximately 15 minutes to complete.
Slotted Mounting Tabs
- Positioning the CSF manifold in the engine bay is a straightforward process, though aligning the bolt holes on the intake-side mounting tabs can be challenging. During testing, CSF identified this issue and resolved it by slotting the mounting tabs. This design improvement allows bolts to be loosely installed before making final positioning adjustments, simplifying the installation process.
Thermal Rejection Competition Spacer
- CSF offers the KIYLEX® Intake Manifold Spacer, made from a patented high-performance final-stage polymer with strength comparable to aluminum and the ability to withstand temperatures up to 1100°F. Designed to insulate the intake manifold from conductive heat transfer from the cylinder head, the spacer acts as a thermal barrier, reducing manifold temperatures, lowering intake air temperatures (IATs), enhancing charge air cooler efficiency, and combating heat soak. CSF is the exclusive distributor of the KIYLEX® Intake Manifold Spacer for the B58 engine. The Thermal Rejection Spacer is particularly advantageous for drag and roll-racing events, where vehicles often idle in staging lanes. During this time, insufficient airflow over the front-mounted heat exchanger causes extreme heat soak, leading to elevated starting IATs on subsequent runs. The CSF manifold, constructed from billet aluminum and 100% TIG-welded for superior strength, can handle higher boost pressures than the OEM plastic manifold but has higher thermal conductivity, increasing heat transfer between the cylinder head and manifold. By incorporating the Thermal Rejection Spacer, this heat transfer is significantly reduced. The spacer absorbs and dissipates heat from the cylinder head, preventing it from reaching the manifold. Designed with competitive motorsports in mind, the CSF Thermal Rejection Competition Spacer delivers optimal cooling performance for a competitive edge, while also providing substantial benefits to any vehicle equipped with it.
Hardware Kit, Well Thought-Out Instruction Manual
- The CSF manifold’s supplied hardware kit includes all necessary brackets, bolts, washers, and CNC-machined fittings for installation—an industry-exclusive feature of the CSF x VF Engineering design. This innovative inclusion required significant effort to both engineer and manufacture. The kit components are vacuum-packaged and labeled with corresponding letters, simplifying the installation process using an easy-to-follow Bill of Materials (BOM), exploded diagrams, and a step-by-step order of operation procedure. Designed with mechanics, technicians, racers, and DIY enthusiasts in mind, this product ensures precision and ease of use. However, as a racing-specific component, the manifold is intended for installation by skilled and experienced technicians familiar with the B58 engine platform.
Custom Powder-Coating & Thermal Rejection Finishing Options
- CSF provides the industry’s widest selection of custom finishes, ranging from color-matched powder coating to advanced Thermal Dispersion Coatings, offering virtually unlimited options. These custom finishes are available for an additional charge, please contact us for further details.
- Powder Coating: Powder coating is available in nearly any color you can imagine, with finish choices that include everything from high gloss to crinkle texture. You can even select accent colors or apply different colors to specific components, such as fuel rails (when applicable).
- Thermal Dispersion Coatings: Thermal Dispersant / Dispersion Coatings are submicron coatings with exceptionally high thermal conductivity. Their dense, unique chemical composition allows for efficient heat transfer. When applied to a heat exchanger like an intercooler, the enhanced thermal conductivity draws heat to the surface of the component, improving performance. These coatings are limited to Black or Grey but deliver the best thermal efficiency.
- Thermal grey
- Anodized red
- Stoplight red
- FX mystique
Features
- Utilizes a high performance, motorsports-grade bar / plate air-to-water intercooler core
- Core can be setup for dual or single pass configuration
- Designed in SolidWorks using computational fluid dynamics (CFD)
- Integrated air divider in inlet tank evenly distributes airflow throughout the core
- Improved slotted mounting holes on throttle body side for easier installation
- Easy access to spin-off oil filter for quick oil changes
- Integrated sensor pad with two 1/4″ and three 1/8″ NPT ports to measure additional parameters or extra sources of vacuum
- Included fuel rail for top feed port injection
- Individual 1/8″ NPT ports on the top of each cylinder runner for nitrous or meth injection
- Individual 1/8″ NPT breather ports for both inlet / outlet water connections on back of manifold for easy bleeding
- Included KIYLEX thermal rejection manifold spacer
- Thermal black finish
- Available in raw billet aluminum
Application
- BMW M240i: G42 (2022+) – 3.0L Turbo I6 B58
- BMW M340i: G20, G21 (2018+) – 3.0L Turbo I6 B58
- BMW 440i: G22, G23, G26 (2020+) – 3.0L Turbo I6 B58
- BMW 540i: G30, G31(2018+) – 3.0L Turbo I6 B58c
- BMW 630i: G32 (2018+) – 3.0L Turbo I6 B58
- BMW 640i: G32(2018+) – 3.0L Turbo I6 B58
- BMW 740i: G11 (2018+) – 3.0L Turbo I6 B58
- BMW 745e: G11 (2018+) – 3.0L Turbo I6 B58
- BMW 740i: G12 (2018+) – 3.0L Turbo I6 B58
- BMW 740Li: G12 (2018+) – 3.0L Turbo I6 B58
- BMW 745e: G12 (2018+) – 3.0L Turbo I6 B58
- BMW 745Le: G12 2018 (2018+) – 3.0L Turbo I6 B58
- BMW 840i: G14, G15, G16 (2018+) – 3.0L Turbo I6 B58
- BMW X3 M40i: G01, G02 (2018+) – 3.0L Turbo I6 B58c
- BMW X5 45i: G05 (2018+) – 3.0L Turbo I6 B58
- BMW X5 45e: G05 (2018+) – 3.0L Turbo I6 B58
- BMW X6 40i: G06 (2018+) – 3.0L Turbo I6 B58
- BMW X7 40i: G07 (2018+) – 3.0L Turbo I6 B58
- BMW Z4 M40i: G29 (2018+) – 3.0L Turbo I6 B58
- Toyota GR Supra: A90, A91 (2020+) – 3.0L Turbo I6 B58
Notes
- CSF designed this specific manifold with the assumption that all users will be utilizing port injection. As a result, the six port injection block-off bungs typically included with the standard 8200/8300 manifolds are not included with this kit.
- Mild Hybrid Models (48V systems) will require minor modification to the alternator
- Fits the following BMW xDrive models:
- M240i
- M340i
- 540i
- 630i
- 640i
- 740i
- 740Li
- 745e
- 745Le
- 840i
- X3 M40i
- X5 45i
- X5 45e
- X6 40i
- X7 40i
About CSF
Back in 1947, a father and his three sons embarked on a business venture by setting up a small retail shop dealing in automotive parts. The family business blossomed over the years, evolving into an automotive garage specializing in radiator repair, and later, a radiator manufacturing facility. By 1975, the family-owned brand CSF was established, marking a milestone as the first to introduce import applications into the American automotive aftermarket, in line with the influx of Honda, Datsun, and Toyota vehicles. By 2009, the fourth generation of the CSF family joined the business, which had by then become a leading name in the import and domestic radiator and condenser markets, selling over 650,000 units that year despite an economic recession, and totaling over 35 million units to date. CSF’s portfolio expanded to include a diverse range of cooling systems, including commercial trucks, industrial and agricultural applications, marine coolers, intercoolers, pressure caps, and a pioneering Racing & High Performance Division. Today, CSF’s Racing & High Performance Division is renowned for designing and manufacturing advanced, efficient, and reliable cooling systems for a wide array of applications, from high performance all-aluminum direct-fit radiators to custom systems for racecars, power sports, off-road, marine, and industrial use. With over 50 years of experience and more than 40 million cooling systems sold worldwide, CSF has rightfully earned the industry title of “THE COOLING EXPERTS.”
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