Wilson Manifolds Carburetor Adapter - 4500 to 4150 - 1.5" 935172 The new MSD cap features

The new MSD cap features spark plug style terminals and is firmly screwed down to the housing

Kit includes (3) CNC-machined aluminum braces and mounting screws

innovation and customer satisfaction

475 in Long

1999-2006 GMC Sierra 1500 Fleetside

Wilson Manifolds Carburetor Adapter - 4500 to 4150 - 1.5" 935172 The new MSD cap featuresNitrous Pro Flow carburetor adapters maximize horsepower in applications where the carburetor and intake manifold were not originally designed to be used together. The internal shape of the adapters were designed on solid modeling software that allows the transition to be made in the most efficient manner possible to prevent mixture separation and improve overall air flow and distribution Nitrous Pro Flow Carburetor Adapter 4500 to 4150 1. 5" 27030