so the cap is for the stock hole in the boat to block off thats in the kit rear

i found the hose that iask you about it goes from the stock water box over to plastic box on the other side that i will be taking out any ways thanks riva

The piece to the left with the four little holes in the top is the block-off we supply for the stock exhaust outlet in the pump area of the hull. You use the stock lock nut from the stock outlet to secure it. And silicone, of course, to seal it!

The ring in the middle of the picture above is installed inside the hull. The bolts go through the billet exhaust outlet (at right above) and thread into the billet ring. Again, you will use silicone to seal the supplied billet exhaust outlet.

so my boat should sound like a super stock car sweet

It will sound good!