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  1. S

    Blow off valve questions

    I will have to play with it but I was looking under the car and dont think it has a cat. See if it help with the back fire. But the hybrid bov if quite but you can still hear it when your getting into it. This is my first turbo car like this so learning on the fly. Lol. Thanks for the help so...
  2. S

    Blow off valve questions

    Ok just got a turbo xs hybrid for my 08 wrx sti hatchback. What do the washers do when you add or take some out. My car back fired befor putting it on but now it really makes a pop now. Plus I have a turbo back full exhaust on it. Sorry camt think of the name right now. Ill have to get back on...
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