Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9 Image1 Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9 Image2 Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9 Image3 Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9 Image4 Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9 Image5
 
 
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Tomei Blow Off Valve Mitsubishi EVO 7-9

   2 reviews

 
  • Aluminum construction

  • holds 1.4 bar

  • Replaces stock BOV


Tomei 191186 Blow Off Valve Mitsubishi EVO 7-9
List Price: $190.00
$171.00  Save 10%
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1 in stock - Ships Monday
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Product Details

In a turbo engine, by closing a throttle in accelerator-off, the boosted air by the turbine sometimes flow backwards to a turbine, and may cause a turbine blow. Then, in order to prevent damaging turbine at the time of accelerator-off, the blow-off valve is installed between a turbo and a throttle. Stock blow-off valve of Evo is equipped with the function that relieves the boost pressure if the boost goes up too much at the time of accelerator-on. Therefore, the boost of Evo is not raised more than fixed boost pressure with stock blow-off. But, on the other hand, it will become the cause of turbine blow if the blow-off valve is removed. As for a TOMEI blow-off valve, only the boost pressure relief function has eliminated while the turbine protection function is left. Moreover, since we applied a bypass type instead of an air release type, there is no worry for engine stall or the deviation of a fuel control. It is an item indispensable to tuning of 4G63 by any means.

Product Reviews and Ratings

5.0 out of 5.0 based on 2 reviews

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By Evo_Jon

Oct 13, 2016

This was exact fit for the Evo 8/9. It noticeably helped to hold the pressure when needed. Quality part you could trust.


By Miguel

May 13, 2011

Just got it today and I just put this in my sr20 with stock smic great response and noise. easy to put on


 

Vehicle Applications

Years Make Model Trim Chassis Engine Notes
2001 - 2002 Mitsubishi Lancer EVOLUTION VII     Blow Off Valve
2006 - 2006 Mitsubishi Lancer EVOLUTION     Blow Off Valve
           
2001 - 2008 Mitsubishi Lancer Evolution       Evolution 7-9 only