Ported 45mm Trumpet Base


In order to match the flow capabilities of ported cylinder heads and inlet manifold, the trumpet base is also very important in the delivery of air to the combustion chamber. Standard 38mm trumpets are replaced with shortened 45mm flared aluminium trumpets, the base is machined to 45mm to match the ported inlet manifold and surfaces of the base polished to promote greater air speed through the induction system. As with the other components of the induction tract, there is little gain from only porting and polishing one of the parts, but when you complete the entire inlet tract and port match all of the component parts, the gains are clearly visible.

£295 (outright surcharge £75)

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