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J4MC12PN Holden 12 Port EFI Intake Manifold

J4MC12PN Holden 12 Port EFI Intake Manifold. 2 year development program ensures this intake is EVERYTHING you expect from a 12 Port intake. Intakes without runners suffer very low airspeed and require modifications to the cylinder head that are detrimental to airflow.


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  • Cast from highest quality ingots and heat treated to T6
  • Fits 12 Port Blue Black Head
  • 125mm long runners
  • Mounted Dash 8 Fuel Rail
  • 65mm Billet Throttle Body (Red, Black or Polished)
  • Stainless Steel Throttle Cable Bracket
  • Provision for MAT, MAP and Brake Booster

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