W4M 3 inch exhaust installed - Page 2

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2009-2015 Cadillac CTS-V Performance Mods Discussion, W4M 3 inch exhaust installed in Cadillac CTS-V Series Forum - 2009-2015; Im working on a muffler one now. The ones that use the factory mufflers, i only sell for $800....
  1. #16
    wait4me's Avatar
    wait4me is offline Cadillac Owners Connoisseur
    Automobile(s): 11v,2 09 v's,2 05 v's,5 GTM supercars,viper,volt,2012 karma
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    Jan 2009
    warsaw indiana

    Re: W4M 3 inch exhaust installed

    Im working on a muffler one now. The ones that use the factory mufflers, i only sell for $800.

  2. #17
    RapidRob's Avatar
    RapidRob is online now Cadillac Owners Connoisseur
    Automobile(s): 2009 CTS-V Black/Black, manual
    Join Date
    Dec 2008
    Seattle area

    Re: W4M 3 inch exhaust installed

    Quote Originally Posted by GMX322V S/C View Post
    ^Isn't it the same system but you cut it ahead of the mufflers?
    Yes - it bolts in after the cats, and extends to, just before, the OEM mufflers. W4M down-sized the ends of the 3" pipes leading to the mufflers, I think, so that they will slip over the 2 1/2" OEM pipes leading into the mufflers. Still a bit of back-pressure but a lot less than with the pinched OEM pipes.


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