Here is a vintage os max 25 C/L engine.. It has the box and instructions. Missing muffler. The engine was in a box of parts when I got it.. I put it back to gather,, It has the baffled piston in it. Now there are two small spots cracked of the top of the baffle on the piston, But I will say this.. It runs very strong and very loud.. lots of compression. I would use the engine and not even think about it. I also have a short video of this engine running to..