As the old expression goes, variety is the spice of life. H-D owners about to have another option when it comes to aftermarket pipes. D&D Performance Enterprises- the manufacturer of Fat Cat and Boarzilla exhaust pipes, has joined forces with Zipper’s Performance Products to provide dealers throughout the United States with new products for Harley-Davidson motorcycles including Softails, Baggers, V-RODs, Dynas and our own personal favorites, the Sportsters.
In addition to pipes, D&D will be releasing their ThunderMax Electronic Fuel Injection (EFI) Controller and AutoTune Module. This combination offers performance gains through a free-flowing exhaust while the controller/ module setup improves throttle response, fuel economy and more efficiently controls heat.

The D&D/Zipper’s performance package is ready to be shipped to dealers and should be appearing on shelves in the days to come. Head over to www.danddexhaust.com for more information.
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