COVID-19 UPDATE: Starting March 30th we will begin shipping orders once a week for IN STOCK items only. We have set up an automated phone service that will allow you to speak with a sales representative during this time, if needed. We thank all of our customers for working with us during this time and look forward to returning to full production in the coming weeks.

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