hacked up exhaust-whats inside..
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2004-2007 Cadillac CTS-V Performance Mods Discussion, hacked up exhaust-whats inside.. in Cadillac CTS-V Series Forum - 2004 - 2007; First off let me say I am NOT cheap.. on most things.. My ride is a single didget 1/4 not ...
  1. #1
    smorgan's Avatar
    smorgan is offline Cadillac Owners Member
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    hacked up exhaust-whats inside..

    First off let me say I am NOT cheap.. on most things.. My ride is a single didget 1/4 not 1/8th 71 Camaro with a shall we say large displacement pump gas motor. That said the V is just the wifes daily driver. I firrst haced off the mufflers as I was going to put on a set of Dynatech race mufflers. I had her run around a few days with just a set of 45s & tail pipes to see if she would like it..... She didnt it was kinda loud in the parking garge where she works. I didnt bother with the Dynatechs as they wouldnt be much better. So its Saturday the 4th, nothing open thought lets butch the stockers apart so here is the results.
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    smorgan's Avatar
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    Re: hacked up exhaust-whats inside..

    After seeing how it wind tyhrough & disposing of the "glass" wow they must have packed 10 -20lbs in there. We decided to fee up flow a tad by wheeling out some iguts. BTW welding was done by my fab guy I am no welder.
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    smorgan's Avatar
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    Re: hacked up exhaust-whats inside..

    The finished product.... All work was done on the top of the muffler. Sound is deeper outside & sounds very good. Inside you wouldnt know anything was done. Ive got to work on a video clip of it.
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  5. #4
    LUVMY04V's Avatar
    LUVMY04V is offline Cadillac Owners Master
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    Re: hacked up exhaust-whats inside..

    Very cool

  6. #5
    smorgan's Avatar
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    Re: hacked up exhaust-whats inside..

    I also want to apologize for the horrible typing and spelling. That’s why I’ve got a secretary at work ;-) My total cost was buying breakfast ..

  7. #6
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    nmaier2201 is offline Cadillac Owners Connoisseur
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    Re: hacked up exhaust-whats inside..

    thanks for the pics. I also did this, but only peeled out a 2" square hold to pull the fiberglass out... so I never got a real good look at what was in there... and didn't hack the guts... but wish I had. It's amazing how much glass they pack in there. Mine sounds only slightly better, and I imagine if I would have removed some metal it might of been a shade louder. Either way I was happy enough with it.

    Wire welded them back up and it cost me..... nothing

  8. #7
    nmaier2201's Avatar
    nmaier2201 is offline Cadillac Owners Connoisseur
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    Re: hacked up exhaust-whats inside..

    Oh yeah I painted mine with some high heat silver so my welds didn't rust out... maybe you did that already, but if not it's a good idea.

    nice welds BTW. I only cut a 2" hole in mine for a reason

  9. #8
    smorgan's Avatar
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    Re: hacked up exhaust-whats inside..

    We didnt have a plan when we started so if your just going to remove the packing it would be a cake walk to plug up a 2x2 hole as compaired to our 8X8.. Thanks my buddy is a welder/fabricator by trade and he didnt like them but he did it in his home shop with a lil snap on 115v machine, if I welded it... let say it wouldnt be pretty

  10. #9
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    Re: hacked up exhaust-whats inside..

    To anyone doing this the right pic on post 2. Mine sounds good but if you like more tone I would cut some out of the section in the lower right of that pic.

  11. #10
    KTompk1009 is offline Cadillac Owners Member
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    Re: hacked up exhaust-whats inside..

    Anyone know what the inside of the stock resonator looks like?

  12. #11
    NormV is offline Cadillac Owners Connoisseur
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    Looks like a 2.5' X pipe with almost one foot for the actual cross section.

    Norm

    Quote Originally Posted by KTompk1009 View Post
    Anyone know what the inside of the stock resonator looks like?

  13. #12
    KTompk1009 is offline Cadillac Owners Member
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    Re: hacked up exhaust-whats inside..

    So I wonder where the "gain" comes from on these aftermarket cat-backs Must be the mufflers.

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