RACEWORKS Female Adaptor -08AN To -06AN Male Reducer, Black Anodise Rails etc and can also be used

and can also be used for other universal applications

End Cap - Closed (2-piece design where end cap can be removed to become open)

Conical ET Style Open Chrome Wheel Nuts - 1/2-20"

RWF-108-16BK

And they allow engine builders to precision-trim around the intake ports

RACEWORKS Female Adaptor -08AN To -06AN Male Reducer, Black Anodise Rails etc and can also be usedRWF 950 08 06BK AN 8 TO AN 6 FEMALE TO MALE REDUCER Raceworks Female AN, Male AN Reducer makes adapting different size fittings way easier. These black anodised aluminium fittings are available in a variety of sizes, so you are sure to find the right one for the job. They feature precise thread engagement and are available in straight. (RWF 950 08 06BK)