Home > Tag Archives: Zipper’s Performance Products

Tag Archives: Zipper’s Performance Products

Partz: M-8 bump stick

Zipper’s Performance wasted little time in developing their new Red Shift 468 Cam for Milwaukee-Eight Engines. The Red Shift 468 is a bolt-in grind created specifically for 107″ and 114″ Harley-Davidson M-8 engines to deliver significant improvements in both power and throttle response. Designed to complement the engine’s high-intake flow heads, it also works to overcome the restrictive exhaust ports ...

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Zipper’s Performance Red Shift Cams and D&D Fat Cat Exhaust: A powerful combo

The D&D Fat Cat 2:1 exhaust cut flows with the lines of the Switchback, and lend to the power improvements from the Zipper's products just installed

Around this time last year, the Zipper’s Performance tech team at their headquarters in Elkridge, Maryland, installed the ThunderMax with AutoTune EFI controller and a Zipper’s HiFlow Air Filter Kit in my 2012 Switchback. The horsepower and torque boost was considerable, and I was very happy with the bike’s snappy performance. Installing a set of Zipper’s Red Shift Cams seemed ...

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ThunderMax with AutoTune

Zipper’s Performance Products HiFlow Air Filter Kit and ThunderMax Auto Tuning Fuel Injection Performance Module for 2012-2013 Dynas

The allure of the Harley-Davidson 103″ Twin Cam was one of the factors leading me to purchase my 2012 FLD Switchback. However, for the 103″  to perform at its highest potential, fuel management and airflow needed to be improved. And all bikes come from the factory running lean, evidenced by the popping sound that occurs upon deceleration. So one of the fi rst modifi cations I planned was an upgrade ...

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