My old pipes are nothing but a glorified leaf blower. It's a good way to clean the grass and leaves off my driveway !
I haven't used my angle finder (for the sprint car wings) on my turn outs but, check out the photo !
My new ss pipes, I will slightly give them 1-2 degree downward angle. Maybe I'll turn them around 70 degree's like a zoomi, and add a a flame flower kit !