The second gasket would be ok if you are bolting two flat flanges together, but from what I have seen with these scoots is that the exhaust ports have a machined recess to take the other type. This means that you may not get a seal, as the main sealing part of the gasket may be over the recess. I recently put a new exhaust on my falcon (rear 2/3s) and used that type gasket, cost about $8 or $9, 2 1/2".