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Thread: SW Long Tubes - CATS or NO Cats on an NA engine...

  1. #1
    Join Date
    Jul 2015
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    SW Long Tubes - CATS or NO Cats on an NA engine...

    You guys weren't kidding....Once you start to mod... you can't stop....I have and 03 Blk Marauder NA, that is going to get long tubes, but wasn't sure If i wanted to go cats or no cats. I have no intention of swapping out the existing exhaust just the headers.. Anyone have any input on pros and cons of cats or not? I am installing 410 and of course the Marty tune as we speak. Cold air intake of course....

  2. #2
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    May 2009
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    Do you have state inspection? Cats generally required and in NJ they do check.

  3. #3
    Join Date
    Jun 2020
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    Nope..we dont have inspections here.

    Sent from my SM-G935V using Tapatalk

  4. #4
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    I went without cats for a year or so and I couldn’t take the stench.


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  5. #5
    Join Date
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    No cats have horrible exhaust smell, just delete the 2nd set of cats, they are not monitored so no check engine light
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  6. #6
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    Quote Originally Posted by RubberCtyRauder View Post
    No cats have horrible exhaust smell, just delete the 2nd set of cats, they are not monitored so no check engine light
    SW LTs only have the one set of cats.
    '03 Marauder | '91 Country Squire | '18 Flex Ecoboost | '92 Shadow VT1100
    former Panthers: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 w/5-speed, '04 CVLX, '03 SAP P71, '10 P7B
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    Quote Originally Posted by offroadkarter View Post
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  7. #7
    Join Date
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    Quote Originally Posted by a_d_a_m View Post
    SW LTs only have the one set of cats.
    Since my car came with Kooks, didn't know if 2nd stock cat was left in or not.
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  8. #8
    Join Date
    Jun 2020
    Location
    Minnesota
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    51
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    Sounds like I am going with CATs..That was my 1st choice but figured I throw it out there and see if I was missing some advantage somewhere....thanks guys.

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  9. #9
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    If you don't get very good guilty cats they will burn up and be rattling in very short time.
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