Dorch Engineering B58 Gen1 Lift Kit – Exhaust Camshaft +40%

Introducing the revolutionary B58 Gen1 Lift Kit – Exhaust Camshaft +40% from Dorch Engineering. Building on the success of our S55 and N55 “Lift Kit” camshaft products, this new release is set to transform the Gen1 B58 community. Designed with precision and innovation, this kit offers a substantial boost in performance by featuring a billet OEM-spec exhaust camshaft with a custom high-lift fuel lobe.

Product Highlights

• Billet OEM-Spec Camshaft: Unlike compromised regrinds, our camshafts are billet-machined to OEM specifications, ensuring superior durability and performance without the need for upgraded valve springs or special tuning.
• Fueling Capacity Increase: When paired with your Dorch HPFP, this camshaft upgrade provides an impressive 40% increase in fueling capacity over the existing HPFP flow, pushing your engine's potential to new limits.
• No Special Tuning Required: The OEM-spec profile ensures seamless integration without the need for additional modifications.

Performance Specifications

• DS25-250 HPFP Flow Potential:
  • Gasoline: 750 whp (stock) / 1000 whp (+40% cam upgrade)
  • E85: 550 whp (stock) / 770 whp (+40% cam upgrade)
• Operating Pressure: 250 Bar across all configurations

Compatibility and Fitment

• Compatible Vehicles:
  • F20/21: 140i, 140xi
  • F22/23: 240i, 240xi
  • F30/31/34: 340i, 340xi
  • F32/33/36: 440i, 440xi
  • G30/31: 540i, 540xi (only up to 2019 model year)
  • G32: 640i, 640xi (only up to 2019 model year)
  • G11/12: 740i, 740xi (only up to 2019 model year)
  • G01: X3 M40i (only up to 2019 model year)
  • G02: X4 M40i (only up to 2019 model year)
• Note: This kit is not compatible with 2020+ B58 vehicles.
• Engine Versions: Suitable for Gen1 and Gen1.5 B58 engines (distinguished by the 08/2017 build date cutoff).
• Injector Upgrade: For maximum benefit, higher-flowing injectors are recommended when reaching the upper limits of the DS25 HPFP.

Installation Requirements

• Compatibility: Only compatible with Dorch HPFP systems.
• Professional Installation Recommended: To ensure optimal performance and correct setup.

Additional Information

For a complete understanding of engine compatibility, please refer to the B58 Engine compatibility PDF or contact us with your VIN for assistance. This upgrade is crucial for those seeking enhanced performance in their Gen1 B58 engines, delivering unprecedented power and efficiency with ease.