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Eddie Berry - Certified Dyno Expert Service Manager, 25 years with Cox's Harley-DavidsonAsheboro, NC "Big City Thunder does what they say - Better sound than a straight pipe and more power than a standard baffle. After testing their products on my Dyno using various bikes, pipes and build combinations, I know first hand, their products work." HOT ROD BIKES - July 2005 - Dyno Results

DON'T BE BAFFLED ABOUT SOUND AND PERFORMANCE!! IT'S WHAT'S INSIDE THAT COUNTS! Are you frustrated having to choose between quality sound and power? The answer you and countless others have been looking for has been answered with the introduction of Thunder Monster baffles. The latest innovations from Big City Thunder are our patented and trademarked exhaust enhancing baffles that deliver not only a deeper sound but also improved performance over a standard baffle or unbaffled pipes. While standard baffles deal somewhat with the issues of exhaust flow, back pressure, sonic and thermal pulses, etc. they generally return less than desirable...