M15 to M3-20B
Sorry, we cannot provide "ready-made" exhaust parts. These systems are usually boat builder specific. Most can be made with off-the-shelf pipe fittings. If your yard has made any sailboat engine installations in the past, they should be able to fit the pipes in short order. The rear engine mounts should fit almost exactly where the 5411 mounts were. The difference is that the mount would be moved 5/8" forward to keep the propeller flange in the same place. The front mounts would then move about 3 3/4" aft. The center distance on both is 11.5".
