The Best That Can Happen To A 08-Up Harley-Davidson Tourer

No new factory motorcycle responds to simple intake and exhaust upgrades like a Harley®! That’s why Zipper’s Performance Products developed the Zip Kit for throttle-by-wire Touring models. Included in the Zip Kit is a Zipper’s MaxFlow performance air cleaner, performance exhaust of your choice and the cutting-edge ThunderMax with AutoTune EFI Controller for throttle-by-wire models. The ThunderMax is the industry’s first and only EFI engine management system developed specifically for throttle-by-wire models. ThunderMax gives you the flexibility of future performance upgrades with the download of a new map. Bolt-on and plug-in the Zip Kit to enjoy immediate power, performance and drive-ability gains that get better with each ride. For an even more dramatic performance gain, include optional Red Shift Cams. Zip Kits for 08-Up TBW Touring Bikes. More info at 410.579.2828 or Zippers Performance ot ThunderMax

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2 Responses to “The Best That Can Happen To A 08-Up Harley-Davidson Tourer”


  1. 1 ROGUE Mar 20th, 2011 at 6:45 am

    I originally had a ThunderMax and a Zippers high flow air cleaner installed on my 2009 FLHTC during Bike Week 2010. The motorcycle already had a Klock Works set of mufflers on it.
    That week I rode the motorcycle to Texas to cover a event there. I was very impressed in the increase in performance.
    I have over 18,000 trouble free miles on the motorcycle since the install and continue to be pleased with its performance.
    Just prior to Bike Week 2011 I installed a D&D 2 into 1 exhaust on the motorcycle.
    I used my laptop to tell the ThunderMax of the change and then went for a ride as the engine re-tuned itself.
    Besides the performance increase I am very happy that the motorcycle does not have to be run on a dyno to tune it.

  2. 2 Bigalyts Mar 20th, 2011 at 1:19 pm

    What is the HP increase on average with the Zip Kit? Does anybody know? This is usually the most amount of HP gain for the least amount of Do$$ars !

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