cat delete turn on check engine light
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  • 2 Post By AAIIIC
2004-2007 Cadillac CTS-V General Discussion Discussion, cat delete turn on check engine light in Cadillac CTS-V Series Forum - 2004 - 2007; Hi I'm new to this forum n I had a question I have an 07 cts v with an k&n ...
  1. #1
    lx5.0 is offline Cadillac Owners Member
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    cat delete turn on check engine light

    Hi I'm new to this forum n I had a question I have an 07 cts v with an k&n and muffler delete n I was thinking of doing a cat delete but would my check engine light turn on and if it does is ther any way to turn it off

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  3. #2
    HAMSTAR is offline Cadillac Owners Enthusiast
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    Re: cat delete turn on check engine light

    1. Yes.

    2. Yes, with a tune. Tuners usually charge from nothing to $100 to turn it off.

  4. #3
    lx5.0 is offline Cadillac Owners Member
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    And would it make any diffrence as in power or sound

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  5. #4
    GMX322V S/C's Avatar
    GMX322V S/C is offline Cadillac Owners Connoisseur
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    With my '09, deleting the main cats (rear ones) made a big difference in sound. Had em put back in, retuned, and only lost a little over 1 RWHP.

  6. #5
    alradco's Avatar
    alradco is offline Cadillac Owners Fanatic
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    Re: cat delete turn on check engine light

    Power gain won't be all that much. Depending on where you are located, the fines for cat removal are pretty big.

  7. #6
    RyRidesMotoX is offline Cadillac Owners Enthusiast
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    You want to do a cat delete along with a muffler delete? That is going to be loud as hell

  8. #7
    UnsafeAtAnySpd's Avatar
    UnsafeAtAnySpd is offline Cadillac Owners Connoisseur
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    Re: cat delete turn on check engine light

    Get headers too while you're at it. I drive my car with headers, no cats, and open cutouts where the cats would be all the time. 'Tis a bit loud, but oh well. Or just get headers since they actually improve power, whereas other exhaust mods just make more noise.

  9. #8
    robojesus is offline Banned
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    Re: cat delete turn on check engine light

    i had hollow cats and muffler delete and it wasn't extremely loud.

  10. #9
    lx5.0 is offline Cadillac Owners Member
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    I really wana delete cats but its just the check engine light that makes me think about it I don't wana b seein a yellow light on all the time

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  11. #10
    AAIIIC's Avatar
    AAIIIC is offline Moderator
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    Re: cat delete turn on check engine light

    Quote Originally Posted by lx5.0 View Post
    I was thinking of doing a cat delete but would my check engine light turn on
    You're in luck! Unlike every other emissions controlled vehicle sold in the modern era, due to a silly oversight by the GM engineers who programmed the V's ECM, the CEL won't come on if you remove the cats on your CTS-V.
    sgtdestruction and robojesus like this.
    '05 Stealth Grey CTS-V, Hyper Silver Linea Corse Venetos w/Continental ExtremeContact DWs (summer), black Team Dynamics ProRace 1.2 wheels with 275/35-18 R-compounds (track), Hyperblack Rota Torques (winter), KW Variant3s, V2 front brakes, Hotchkis rear sway bar, EPS cam, TEA-ported 243 heads, FAST92 intake w/LS2 TB, JBA Camaro/G8 1-3/4" shorty headers w/JBA cat pipes, Corsa exhaust, UUC motor and tranny mounts, UUC shifter, MAPerformance trailing arms, Specter cradle bushings, etc...

  12. #11
    PISNUOFF Guest

    Re: cat delete turn on check engine light

    ^^^^lmao

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