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CVP V-Ductor

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The V-Ductor is the velocity stack that fits under your air cleaner. By funneling air through the unique and proven venturi design, the V-Ductor reduces turbulence while increasing velocity for optimal fuel mixture. Unlike vanes, grates or screens that may deflect airflow or encourage turbulence, the V-Ductor never blocks or reduces flow. Increased air density greatly improves mileage by encouraging a more complete burn of the air/fuel mixture. Bolt-on performance that installs in minutes. The only device of it's kind CNC machined and laser cut from 6061 billet aluminum and designed to install behind your stock or high flow air cleaner. 

Fits all Harley models using CV style carburetors,  Delphi Fuel Injection, 08-13* Touring FL, and Mikuni HSR w/ airbox adapter. 
Available in the following styles:

  • 1989-2006 Big Twin and Sportster.
  • 2000-present Delphi fuel injected (Softail, Dyna, Sportster, pre-08 Touring).
  • 2008-2013* Touring models with Throttle-By-Wire.
  • Mikuni HSR 42/45 when fitted with the Mikuni to Harley airbox adapter.**

Includes gaskets.

V-Ductor on a Harley CV carburetor V-Ductor on a Harley Delphi FI throttle body

* Note that 2014 Touring models introduced a design change to the air cleaner backing that will not work with a V-Ductor. 2014 touring models must use an aftermarket airbox assembly (K&N, Cobra, Arlen Ness, etc).

** V-Ductor for Mikuni HSR uses same Harley CV bolt pattern and requires use of the Mikuni/Harley airbox adapter supplied in HSR easy kits, not included with the V-Ductor. 

If you are not satisfied with the performance of the V-Ductor please contact CV Performance
within 30 days for a return authorization.  A refund of your purchase amount will be issued upon return. 
Satisfaction GuaranteedPlease refer to our return policy for complete details. 

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Product Reviews

Showing reviews 1-4 of 24 | Next

  1. Great products

    Posted by on

    Installed a deluxe tuners kit, new vacuum slide and a V Ductor on my 2006 Road King Custom. Replaced a Dynojet kit and drilled out slide. The difference in performance and milage was unbelievable. Averaged 45 mpg on a trip from Tucson to Fresno at 70-85 mph. At least 5mpg more than I had been getting on long open road trips. Very satisfied with quality and performance of all three products. Good info on the forums too.

  2. Must buy

    Posted by on

    I installed the cv tuners kit on my FXDX during the Winter and it greatly improved the performance of my bike. I bought the bike last December and the only upgrade the previous owner had made was to replace the exhaust with Screaming Eagle slip on mufflers. I added a K & N air filter when I rejected the carburetor. I received an email advertising the V-Ductor and since it was on sale it was a no brainer. The immediately noticeable improvement was quicker warm up on starting, smoother acceleration and deceleration and a better sounding bike. I'll be back to report any other improvements after putting some miles on the bike with this upgrade.

  3. Simple yet very effective

    Posted by on

    Great product that is greatly underestimated. Simple design, easy install.

  4. Seems to work

    Posted by on

    Bike seems to run smoother at speed than before. But it may have been the tuners kit I also installed.MPG seems better but still too soon to tell. Definitely the best, easiest carb rebuild I've ever done. Would recommend to any average shade tree wrench.

Showing reviews 1-4 of 24 | Next

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