3 in cat back - FirebirdV6.com/CamaroV6.com Message Board

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  • 3 in cat back

    is 3in too big for 3.4? and is there a big diff between a full cat back and just the muffler?

  • #2
    Re: 3 in cat back

    3in isnt too big. with a muffler youll mostly just get a different sound with very very little performance gain. cat back youll get more sound than with just a muffler and itll increase performance and gas mileage more.

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