Billet Blow Off Valve (BOV) for EVP Can-Am Defender Turbo Systems
Billet Blow Off Valve (BOV) for EVP Can-Am Defender Turbo Systems
Billet Blow Off Valve (BOV) for EVP Can-Am Defender Turbo Systems
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Billet Blow Off Valve (BOV) for EVP Can-Am Defender Turbo Systems

FITMENT NOTE: This BOV kit is only compatible with 2020-and-newer Can-Am Defender HD10 models equipped with the EVP DT-130 or DT-195 Turbo System.


If you're adding the EVP DT-130 Turbo System for Defenders, our new BOV kit is a must-have addition to help prevent compressor surge and lost performance, while prolonging the lifespan of both your turbo and engine.

Evolution Powersports was first in the industry to design and produce a Blow Off Valve (BOV) specifically for small displacement factory turbocharged engines. Virtually every BOV on the market was designed for automotive applications, which have different requirements in terms of spring rates and flow capacity vs a powersports engine. Back in 2015, we decided to take a no-expenses-spared approach to designing a BOV specifically for the powersports market.

For a BOV to work consistently and not leak, tolerances must be held to an extremely high standard. The EVP BOV body, cap and piston are precision CNC machined from billet aluminum with tolerances that approach within .0003". The sliding components are hard anodized and coated so the BOV will last the lifetime of the engine. For each vehicle / engine type we make BOV kits for, the spring rates are properly matched for optimum performance. 

  • Tested to 500+ horsepower
  • Prevent compressor surge which leads to loss in performance and throttle response when the throttle closes then reopens at speed
  • Simple install, no drilling required
  • The body, piston and cap are machined from billet aluminum
  • The cap is anodized and re-machined for easy gripping for spring tension adjustments
  • The piston and body are hard coated with impregnated Teflon anti friction matrix
  • The design has 3 sealing O-rings for leak proof operation
  • Has the "Blow Off Valve" sound that turbo customers crave
  • Includes a pre filter to keep dirt/sand out of the valve exhaust ports
  • Requirements:
    • DEFENDER HD10 - Requires EVP DT-130 or DT-195 Turbo System for proper installation

This product is exempt from the emission standards and related requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code§§ 27156 and 38391]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public. This product is sold only in connection with machines that do not fall under state and/or federal noise or emission standards/regulations. Purchasers who/that purchase this product represent and warrant that the product is purchased only in connection with EPA -certified, emission-regulations-exempt and noise-regulations-exempt competition/racing vehicles as interpreted under applicable state and/or federal law. Questions: Call Evolution Powersports at (715) 247-3862.
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