Cutty Posted July 7, 2009 Share #1 Posted July 7, 2009 Has anyone put their bike on a dyno before changing pipes and than after muffler change to see HP and torque values? Just wondering if the 2 cylinder mufflers exhaust waves where any different than the 4 cylinder flow. Link to comment Share on other sites More sharing options...
rod Posted July 7, 2009 Share #2 Posted July 7, 2009 I know Barron's has. They were designing the nasty boy when I build their dyno room. I had the actual # but lost them in a computer crash. The Road King pipes with carb adjustments did better than stock; Nasty Boys with big air kit and re-jet made big HP but bad MPG. They had a kit at one time but don't know if is still available. I saw some real tire burners while I was there including turbos. Ride safe Rod Link to comment Share on other sites More sharing options...
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