jolfstn Member Jan 28, 2012 #1 If my HT engine is actually quieter with the expansion chamber than it was with the stock muffler, did I possibly install it wrong? Have noticed no real increase in power I was expecting.
If my HT engine is actually quieter with the expansion chamber than it was with the stock muffler, did I possibly install it wrong? Have noticed no real increase in power I was expecting.
