Faction MX Intake Valves

Faction MX Intake Valves
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    Faction MX Intake Valves

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    Please see our Engine Valves and Shim Kits category for more choices.

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      Put perfection in your motorcycle or ATV with Faction MX’s Intake Valves made from 21-4N stainless steel. A material resistant enough to wear evenly for excellent sealing and compression at any RPM. Black nitrite coating and swirl polishing make the valves slide smoothly in their seals and with a set of Faction MX High Rev Springs—which Faction MX recommends—these valves float about as much as a brick. Stick them in your engine when you want consistent, tough valves.

    • Sold in pairs
    • Compatible with stock valve springs
    • Recommended for use with Faction MX High-Rev Spring Kit
    • Constructed from 21-4N stainless steel
    • Black nitrite finish and swirl polishing improve air flow and lubricity

    Faction MX Intake Valves Reviews

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    4.3 / 5.0
    16 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    5.0 / 5
    5.0 / 5
    5.0 / 5
    5.0 / 5
    Recommend it?
    Yes (1)
    5 / 5
    5 / 5
    5 / 5
    5 / 5
    Recommend it?
    Fit perfectly and runs like a champ.

    -m-2010 YAMAHA YZ450F--
    September 21, 2016
    Lake Stevens, WA, US
    Age: 45-64
    over 2 years ago
    161 - 190 lbs.
    5'7 - 5'9
    Great product.
    Great product.

    Machine this part was bought for: 2009 KAWASAKI KLX450R
    March 15, 2016
    Good valves
    Good valves. Bike runs good with them in

    Machine this part was bought for: 2006 KAWASAKI KX250F
    January 14, 2014
    good vales if you don't have money for the high dollar ones

    Machine this part was bought for: 2005 HONDA CRF250R
    December 17, 2013
    Very Durable
    I have been using these for over 90hr and they are still holding strong. Always my first choice for valves. I like the coated valve stem for added life
    June 3, 2013
    Fits my crf450r exellent.
    March 17, 2013
    great valves
    great valves
    February 26, 2013
    Intake valves
    I have an 04 crf450r which is notorious for eating away valves and after I got the Faction-mx valves i havent had to adjust my valves after nearly 100hrs of riding. would recommend to anyone.
    November 12, 2012
    Didnt last one season of trail riding before the stem snapped and destroyed my motor.
    August 20, 2012
    No quality controle
    The first box i recived was missing one valve.the valves are boxed in pairs so i sent it back and was sent a new box.The valves in the second box were not the same other then the stem legnth and face diamiter. One was magnetic while the other was not. The two valves were two different weights. The contures of the valve faces were different.
    April 12, 2012
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    Browse 1 question Browse 1 question and 1 answer
    In the description on these valves it states;

    "and with a set of Faction MX High Rev Springs—which Faction MX recommends"

    Where do you get the springs? Can't seem to find them here on RM's web site...
    ANDREW H on Sep 14, 2016
    BEST ANSWER: We do sell the springs. I will attach a link to it, just make sure you enter in your machine in the drop down boxes.

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