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!
Our Zip Kits for Touring models include a pre-mapped ThunderMax® EFI module and MaxFlow air cleaner kit; the kits on this page include your choice of slip-on mufflers but do not include replacement headers. 2009 49-state standard 96 and 103 inch models are supplied with an excellent performing factory header pipe equipped with 18mm sensor bungs installed in locations that are fully compatible with ThunderMax's® 18mm full RPM-range wide-band sensors. In 2010, H-D® changed the thread size and location of their narrow-band (limited RPM-range) oxygen sensors and added a catalytic converter to the collector area of the header. ThunderMax® can still work with a 2010-up header, but 18mm bungs will need to be added to the factory catalyst-equipped header in the 2009-style location, and the factory 12mm narrow-band sensors must be removed and capped. If this modification is not an option for you, we suggest a Zip Kit with headers - see our other Touring model Zip Kits!
This product is not for sale or use on pollution controlled vehicles.