Nice find and welcome to TT. Nice to hear from another Canuck.
- Damper plate is between engine flywheel and tranny. It can begin to come apart and eventually fail. Check out this site: http://www.foleyengines.com/resource...attle-and-roll
- Marine engine exhaust risers are specific to marine engines. Nothing like an auto exhaust manifold.
2005 X2, Viper Red, MCX, OJ TZ-X5 prop, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate, custom wake shaper
(previous) 2001 X5, 1991 TriStar 190