That is my van, with the Lilley engine...
Michael Townsend is next to mine.

The exhaust is a Super Turbo muffler with a Monza muffler tip.  I used a 2" 45 degree connector pipe, from autozone, to connect the tip to the muffler.

The only modification to the stock was that the two mounting arms needed to be bent down a inch or so to clear the 6" round muffler.

The CAT was ceramic coated along with all the exhaust pipes.  The muffler was wrapped in a heat wrap and painted blue.

The archives have the part numbers, look for Dynomax, Super Turbo.

Ron also has pictures of the difference between the Boge spring set, that he sells and the H&R springs (on the blue van)  Ask him and maybe he will post those pictures also.

Robert