Hi,
I am about to install the side pipes temporarily for go karting. I have ffv long tube headers for the coyote. I have two questions.

1. Should I not use the gasket because I only have 1 set or just get another set for the final assembly?

2. Should I cut the inner part of the gasket out because the flange on the header side is one big opening and the side pipe flange is four tubes.

I was also wondering if I can install the side pipe hangers before the body is on because of fitment, but I read some posts saying to not install the hangers for go karting. And some people don’t use the hangers at all. I am planning on using the hangers eventually with the 1 bolt loose fit method.