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  • CSF Second Fuel Rail Kit for CSF BMW S58/B58 Air-To-Air Manifolds
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CSF Second Fuel Rail Kit for CSF BMW S58/B58 Air-To-Air Manifolds

CSF
CSF8404
Intercoolers
$415.61 CAD
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...
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CSF Second Fuel Rail Kit for CSF BMW S58/B58 Air-To-Air Manifolds
Description + Fitment

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
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