opening the stock cat to 3" out - FirebirdV6.com/CamaroV6.com Message Board

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  • opening the stock cat to 3" out

    something the local fbody god ( www.lt1dave.com ) came up with. the stock cat sucks, it's the biggest restriction. But, we opened the cat up to 3" out, 3" cat-back pipe to the flowmaster muffler...it makes a HUGE difference from when I had the flowmaster before. Sounds better, is noticeably quicker up top.

    just something i thought id share with the v6 community [img]smile.gif[/img]
    2011 Camaro LS 6M, in black.

  • #2
    yea I did that with my old cat. [img]smile.gif[/img] Thanks for the advice tho. [img]graemlins/thumbsup.gif[/img]

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