CSF Second Fuel Rail Kit for CSF BMW S58/B58 Air-To-Air Manifolds
CSF8404
⚠️ CARB Compliance:
This product is not CARB-approved and cannot be shipped to California or other carb restricted states.
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$300.00
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$300.00
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The CSF "No Limit" B58 & S58 Air-to-Air Billet Manifolds (CSF #8401 & #8402) come with one fuel rail for port injection (for 6 injector setups). For those looking to run dual port injection, CSF offers a second fuel rail kit. The CSF #8404 Fuel Rail Kit comes with all the necessary mounting hardware and features the same -8 ORB fitting as the primary rail. It can be set up as a return or returnless system.
Installation Instructions- For secondary top feed port injection (additional 6 injectors for a total of 12 injectors) on the CSF #8401 and #8402
- CNC machined 6061 Billet Aluminum Made by CPC (Made in Australia)
- Includes -8 ORB plug for returnless setup
- Includes Mounting Hardware
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2026 | BMW | M2 | Base |
| 2023-2026 | BMW | M240i | Base |
| 2022-2026 | BMW | M240i xDrive | Base |
| 2021-2026 | BMW | M3 | Base |
| 2021-2026 | BMW | M3 | Competition |
| 2022-2026 | BMW | M3 | Competition xDrive |
| 2024 | BMW | M3 | CS |
| 2020-2024 | BMW | M340i | Base |
| 2020-2024 | BMW | M340i xDrive | Base |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
| 2021-2024 | BMW | M440i | Base |
| 2022-2024 | BMW | M440i Gran Coupe | Base |
| 2021-2024 | BMW | M440i xDrive | Base |
| 2022-2024 | BMW | M440i xDrive Gran Coupe | Base |
| 2020-2024 | BMW | X3 | M |
| 2020-2022 | BMW | X3 | M Competition |
| 2020-2025 | BMW | X4 | M |
| 2020-2022 | BMW | X4 | M Competition |
| 2022-2026 | BMW | Z4 | M40i |
| 2024 | Toyota | GR Supra | 45th Anniversary Edition |
| 2021-2022 | Toyota | GR Supra | A91 Edition |
| 2023 | Toyota | GR Supra | A91-MT Edition |
| 2020-2026 | Toyota | GR Supra | Base |
| 2020 | Toyota | GR Supra | Launch Edition |
| 2026 | Toyota | GR Supra | MkV Final Edition |
| 2020-2026 | Toyota | GR Supra | Premium |
MPN: 8404
