Lee Teicheira cut seals for rear and side engine cooling baffles and drilled holes for mounting seals and retainers to baffles. RRY 2023 note: black seal material should have curved IN, not out. I renewed it with red silicon, curled the proper way. Plus, this is NOT to plans, and while it makes the trimming of the baffles easier, I'm skeptical it's superior. The plans schema when properly executed is probably a little lighter, although it MIGHT not seal quite as well.