ThunderMax Electronic Fuel Injection Motorcycle Performance Parts
Motorcycle Performance Kits


  Zip Kit Jim's 120  
  Motorcycle Performance Kit
  • Total bolt on package with direct plug-in installation
  • Increased Horse Power, Torque, and Fuel Economy
  • Increased Throttle Response
  • Improved Drivability
  • Minimizes Annoying Exhaust Popping
  • Engine/Exhaust Specific Map Included
  • Muscle kits include 25 years of experience that works, top shelf quality, pre-programmed ThunderMax module, performance exhaust, and a high flow throttle body pre-calibrated for your specific engine kit.
 
 
  • Install and enjoy!
 
 

No new bike responds to simple intake and exhaust upgrades like a new Harley-Davidson® motocycle! But today’s new EFI bikes are more complicated to modify. Gone are the days of changing a few jets plugging in a new ignition module—EFI has changed that. So we developed the Zip Kit for stock 88” EFI Big Twins that includes a Zipper’s high flow air cleaner, performance exhaust and our cutting-edge ThunderMax EFI Controller.

The ThunderMax ECM is pre-mapped for the intake and exhaust system supplied, so there are no worries about dyno tuning because we’ve done it for you! And the ThunderMax gives you the flexibility of future upgrades with just the download of a new map. Just bolt-on / plug-in the Zip Kit and enjoy the power, performance and drivability of the most highly refined EFI system on the market!

Ordering is easy! Simply, choose the kit for your bike and the exhaust system that you desire. Don’t see what you’re looking for here? Contact us for the latest additions to the available maps—we’re making new ones all the time!

Want to know more about our ThunderMax fuel injection?
View our ThunderMax product page or our EFI Information page in our support section.
 
  See also... Jim's 120
Read customer Testimonials
To Order, Call (410) 579-2828  
  NOTICE: Not legal for sale or use in States where emission laws apply.
 
   




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