Hi Randy, help a old guy out. I forgot what exhaust temp. from most 60 size engine. I believe its around 200 to 250 degrees? Don't get old, can't remember anything. I'm just playing around with different exhaust system, lost my temp gauge. I wanted to test temp at engine and then test at the end of exhaust system. Just was interested how many degrees is lost from engine to end of muffler. I'm always doing something stupid, I have different mufflers and testing to see the different power of the engine on the different muffler set up's. I have a digital fish scale, going to see if there is a different pull bye using different exhaust systems. Just having fun, appreciate any input, thank you, Gary