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Big City Thunder, part of ProFabrication

Dyno Tests

Eddie Berry - Certified Dyno Expert

Service Manager, 25 years with Cox's Harley-Davidson
Asheboro, 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