This should Ideally be bought to go with a ported manifold to achieve the best results as its flange is opened out and port matched to the ported inlet of the inlet manifold it connects to.
Its made by using the flange of the standard item and welding fresh alloy tube to it which has two advantages, removing the EGR and creates a far less restrictive flowing path for the air to pass through. Two options exist. Either made to fit the standard spec diameter of 57mm/2.25” or a slightly larger diameter of 63mm/2.5” to suit people with larger pipe work custom front mount intercooler setups etc.
