EVOLUTION Intake Manifold for Keihin CV, HSR42


Single (Y-Split) CNC Billet Aluminum Intake Manifold, Keihin 40MM CV style interface for Speed And Science EVOLUTION headset (OEM or Big Bore)



EVOLUTION Intake Manifold, CNC’d billet aluminum.

  • Interfaces with Keihin 40MM CV, HSR42 and any carb with 46MM OD spigot. Carb rubber “boot” not included.
  • Mounting flange “cone” seals included.
  • We have completely redesigned the Intake’s inner shape as well as the Intake <–> Head interface (perfect match with the Speed And Science “speed bump”). That particular design is resulting in much better airflow, releasing the potential for more horsepower.
  • This product has been specifically designed to match the ports on the Speed And Science EVOLUTION headset, but it will work with an OEM style headset as well.

Additional information

Weight2 lbs
Dimensions10 × 5 × 5 in


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