No new bike responds to intake, exhaust and tuner upgrades like a new Harley® – you’ve got to let it breathe, and optimize the tune! That’s why Zipper’s Performance Products developed these Zip Kits for Big Twins and Sportsters®, and this is why you should consider a Zip Kit over other offerings:

    • Proven, Matched Components That Work
    • Smoother, Cooler, Better Running Engine
    • More Power At All RPMS – More Useable 6th Gear
    • Improved Starting, Sharper Sound, Immediate Improvement
    • Ready To Install, No Dyno Time Required
    • Easy Installation, Just A Few Hours To Transform Your Bike
    • Never Outgrow it – Supports Future Upgrades
    • High Quality, USA-Made Components
    • Kit Price Includes Package Discounts

Included in a Zip Kit is a Zipper’s MaxFlow performance air cleaner, performance exhaust of your choice and the cutting-edge ThunderMax® with AutoTune EFI Controller. The ThunderMax® gives you the flexibility of future performance upgrades with a simple download of a new map. Bolt-on and plug-in the Zip Kit to enjoy the immediate power, cooler and smoother performance and ride-ability gains that ThunderMax® provides!

These Zip Kits for Touring models include a pre-mapped ThunderMax® EFI module, MaxFlow air cleaner kit and your choice of high performance D&D 2-into-1 exhaust systems. Why? All full-replacement performance systems we offer with Zip Kits are fully compatible with the 18mm full RPM-range wide-band sensors that ThunderMax® uses. In 2010, H-D® changed the thread size and location of the narrow-band (limited RPM-range) oxygen sensors and added a catalytic converter to the collector area of the header. The high performance D&D 2-into-1 systems included with these Zip Kits do not include a catalyst. When ordering, you can choose the muffler slash style and baffle option you desire!


This product is not for sale or use on pollution controlled vehicles.

Weight 1 lbs
Country of Origin


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3 reviews for 2009-2016 Touring Model Zip Kits with D&D 2-into-1 Boss Fat Cat Exhaust Systems

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