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This is a discussion on Exhaust within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Has any one run straight exhaust on 2011 wrx impreza any gains or has any one cut the converter off ...

  1. #1
    Registered User Z31_2011's Avatar
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    Exhaust

    Has any one run straight exhaust on 2011 wrx impreza any gains or has any one cut the converter off


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    zax
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    Registered User Ingo's Avatar
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    Run a search... There's plenty of example where people have installed straight downpipes without converter. You absolutely have to TUNE for that. You can NOT just cut out the converter. Muffler or not makes less difference than the cat....
    You can't have everything - where would you put it?

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