Are "wares' the same thing as ******?...If so, I guess if your Johnson is responsible for a bunch of "wares"....He mus' be a pimping mack daddy...

But seriously folks...I've done a little research and the CM30p7-1 comes in both 5/8" and 3/4" sizes.

Which be da right one fo our application?

Oh BTW, thanks Montana Crossfire for the words of caution...I plan to isolate the intercooler system from the engine setup which should give me a net reduction in pressure on the intercooler core...I think...