Hi. I am putting a saito 180 sideways in a sig 300 extra. The problem is the muffler will hit the firewall no matter which way I turn it. My question is can i cut the manifold and add about an inch without creating a problem or is their a manifold that someone sells that would work Thanks cornfused

Horizon hobbies sells headers and manifolds for the Saito line, including flexible exhaust pipes. Perhaps they would have one for your 180.

www.horizonhobby.com