Developed specifically to meet the tuning needs of Harley-Davidson Tri-Glide® model, the Thndermax Zipper’s ZIP KIT will get you big power and Improve Drivebility. It’s just a bolt-on and plug-in device to experience the benefits of Zipper’s pre-engineered and road-tested kits.
Zip Kits include a pre-mapped ThunderMax® module with AutoTune EFI Controller, a MAXFlow air cleaner kit and a performance exhaust. And if you want to take your trike to another level of reliable performance you can add Zipper’s Red Shift® Hi Torque series cams for an even greater torque boost. All components made in the USA. Zippers Performance.