Get the most from your Commodore's power plant by fitting these 4-1 style Hi Flow headers.
They are designed and manufactured locally to give you engine the ability to breath and are the perfect addition when you are upgrading your power plant with a Harrop camshaft or Supercharger kit.
The are manufactured from 401 grade stainless alloy to ensure longevity, the design integrates a high performance catalytic converter which is kept as close to the engine as possible to improve performance and maintain emissions compliance, the O2 sensor position is maintained close to the standard position to eliminate the need for patch harnesses and the outlet is also in the standard position to allow maximum fitment options.
Primary Diameter: 1 ⅞" - 47.625 mm
Outlet Diameter: 3" - 76.2 mm
Integrated Catalyst: Yes
Vehicle Applications: Holden VE Commodore including H.S.V. variants