RE: Club Enya
The stock TT 46 pro muffler gave me 1,540rpm gain on a 9x5 over the ss30 muffler, and the .46 Jettstream muffler gave nearly identical readings as open faced exhaust - 2,390rpm gain over stock muffler on APC 9x5.. Volume matters. Close to 16k on a 9x5 is impressive to me, especially being relatively modest in the timing department. It only cost me $45/shipped from NY too.