Ive got 25 degrees down from the belly, but the tips angle toward each other. if i twist them to exit straighter the pipes are too close to the cowl. (Vetterman crossover) Does this look about right?
I fretted about this and got them equally distant from the cowling and the fuselage. I probably spent more time on this than I needed. I happened to be at Vans the other day and took a picture of the 6 and it's exhaust. It's clear that the exact exit and alignment isn't important. Just keep it centered.