well i couldnt figure out how to run the exhaust so i made a header like deal its quiet actualy it runs into a 2.5 in pipe to a 2.5 in thrush welded same as a flowmaster 40 series with a 1 1/2 pipe tip for back pressure runs good sounds like a ranger. its low range a 50 chain with 10 tooth to 50 tooth so has crawling first gear