WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.High-horsepower Gen 2 B58 builds often reach the thermal limits of standard aftermarket manifolds when pushing past the 1000hp mark. The CSF 8400 Race X Manifold addresses these cooling and airflow bottlenecks with a massive 25% increase in core size compared to the standard CSF Super Manifold. This motorsports-grade unit features 15 cooling rows to maintain low intake air temperatures during high-level competition and drag racing.
Key Features
- 25% larger motorsports-grade bar and plate air-to-water core
- 15 rows of water cooling compared to 12 rows on CSF 8200 and 6 rows on OEM
- Included KIYLEX thermal rejection manifold spacer to reduce conductive heat transfer
- Integrated air divider in the inlet tank for equal airflow to all cylinders
- Top-feed fuel rail included for port injection setups
- Individual 1/8 inch NPT ports on each runner for nitrous or methanol injection
- Versatile front water plate with -16 ORB bung for single-pass or ice box configurations
- Recessed design allows access to the spin-off oil filter without manifold removal
- Slotted mounting tabs on the intake side for easier positioning and installation
- Raw billet aluminum finish
Specifications
| Core Type | Air-to-Water Bar and Plate |
| Core Dimensions | 125mm x 103mm x 540mm |
| Material | Billet Aluminum |
| Cooling Rows | 15 |
| Finish | Raw Billet Aluminum |
| Mounting Hardware | Included |
Fits
Fits vehicles equipped with the Gen 2 B58 engine. This includes the BMW G20 M340i, G22/G23 440i, G29 Z4, and the Toyota GR Supra. Verify your specific engine generation before ordering.
Installation
This is a racing product intended for installation by a technician familiar with the B58 platform. While designed for the OEM location, some modifications may be required for specific plumbing or fuel setups. The included hardware kit features vacuum-packaged components with a Bill-of-Materials list and exploded diagrams to assist the installer. A standard BMW or Toyota bleeding procedure is required after installation, typically taking 15 minutes.
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