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Pro X Steel Exhaust Valve/Spring Kit
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Pro X Steel Exhaust Valve/Spring Kit

Our price: $114.99$126.99

MSRP: $126.95 - $141.06 - You save up to $14.07 (10% off)

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  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

  • Warranties

    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

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    Call us: 1 800 336-5437
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  • 21-4N Stainless Steel Valves for increased durability and less wear under extreme conditions.
  • Black Nitrided valves offer high microhardness while supersmooth surface finish reduces friction between stem and guide.
  • Special designed valve springs deal with the extra weight of the Stainless Steel valves.
  • Springs are made from premium Chrome Vanadium Steel for higher performance and durability at high rpm.
  • Fully rebuildable utilizing your OEM retainers, bases and seals without the need of any further engine modifications.
  • Comes as complete package of all exhaust valves and springs.

Pro X Steel Exhaust Valve/Spring Kit Reviews

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Comments On Jan 08, 2014:Great product for the price when your a racer. Pro X hasn't failed me yet!!!

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Great Valves

Comments On Jun 11, 2013:These valves are great. When I rebuilt my bike I redid my head (cut the valve seats) and then installed these Pro-X steel exhaust and intake valve kits with new seals. Bike started in 2 kicks and has been going strong since. It's been about 3 months and I've been racing nonstop since then with no problems. Still starts in about 2 kicks, and I haven't even had to re-shim them.

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pro x valve kits

Comments On Aug 14, 2011:i bought a complete set for my 05wr450f and they went right in after shimming the up to spec and setting the timing the bike fired right to life again these are a nice upgrade over the stock titanium valves id do it all over again with pro-x products

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Product Info

Pro X Valve Spring Kit

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