2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete
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2004-2007 Cadillac CTS-V Performance Mods Discussion, 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete in Cadillac CTS-V Series Forum - 2004 - 2007; Iphone vid I did getting out of work. Its not the best and only a couple revs but thought I'd ...
  1. #1
    JustinC is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
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    2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    Iphone vid I did getting out of work. Its not the best and only a couple revs but thought I'd share. Under WOT it sounds amazing but driving daily and waking up at 3:00am to goto work would annoy not only my neighbours but me after awhile(droned). Definately fun tho!
    I now have Magnaflows which I will get a vid of soon.

    As for the Random Tech cats. Its winter so I cant tell performance but definately a big difference in 3rd gear(no traction to tell 1st, 2nd since its winter). Also definately 100% picked up a solid 2mpg daily driving in the city. I watched it like a hawk in the winter since milage drops 2mpg in the winter before the cats. Fantastic piece and I managed to get $300 for the 2 cats by taking them to my local Steel yard!




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  3. #2
    big reg is offline Cadillac Owners Member
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    I gained about 2mpg as well with them in the city. They definately upped the sound a ton. I have the muffler delete but kept the resonator and it sounds perfect.

  4. #3
    Aurora40's Avatar
    Aurora40 is offline Cadillac Owners Enthusiast
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    Do random tech cats set a post-cat O2 code on a stock PCM?

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  6. #4
    big reg is offline Cadillac Owners Member
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    No sir, no codes tripped and no tune needed either although it would not hurt.

  7. #5
    Jeremyt is offline Cadillac Owners Member
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    Quote Originally Posted by big reg View Post
    No sir, no codes tripped and no tune needed either although it would not hurt.
    waiting to hear a mufflered vid. Im thinking real hard about these....I have magnaflow catback.

  8. #6
    JustinC is offline Cadillac Owners Member
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    I'll put one up with the poor mans magnaflow muffler setup in an hour. Idle and a couple revs at least.

  9. #7
    BirdmanTamu's Avatar
    BirdmanTamu is offline Cadillac Owners Fanatic
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    Re: 2004 CTS-V w/Random Tech highflow cats, x pipe and muffler delete

    Quote Originally Posted by JustinC View Post
    I'll put one up with the smart mans magnaflow muffler setup in an hour. Idle and a couple revs at least.
    Edited.

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