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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 27 | Next

  1. does what it says!

    Posted by on

    The claims are true you will gain 3-5 miles to the gallon. I have a 2000 roadking with 88000 miles on it. I installed their carb kit first and was averaging 37 miles to the gallon. I then installed the v ductor and am now averaging 41 mpg. All in all this product is worth it and so are their other products so far I am very happy with the company.

  2. Mileage better than expected.

    Posted by on

    I was really surprised when after 120 miles, and not hitting reserve yet, I looked into the tank and had quite a bit more gas left than I thought I should have. The ride that day was no putt around town either, I have a 1200 sport and we were blasting thru the twistys. Had a few 100 mph blasts, and some mountains thrown in too. The V-Ductor truly does increase mileage, I would not have believed it if Ihad not experienced it myself. Well designed product. Get one!

  3. Noticeable power

    Posted by on

    Noticeable power right away, easy to install, quality product.

  4. 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.

Showing reviews 1-4 of 27 | Next

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