but i need to know what size plugs to buy since my bbk headers have the bung for the air system!!! anyone know what size plug i need?

 

yeah i think so y?

 

1 - There are two different thread sizes used on the "stock" connections. 2 - not all headers use the same size threads, and some require adapters because the header connections are male, not female.

You take the AIR parts you have and see if they will screw directly into your headers. If they do, (and assuming your 94 has a 94 single-cat engine, not some replacement) you need an M22-1.5 oil drain plug, with a copper gasket, for each side. If they don't fit, you work your way logically be telling us what the connections on the headers look like, and what the dimensions are.