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Thread: Removing all cats?

  1. #16
    Join Date
    May 2009
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    Moreau Island
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    Quote Originally Posted by dustybo83 View Post
    Did it cause any issues besides a check engine light?
    Reason I'm asking is I had flowmaster super 10's installed, and I'd still quiet as a ***** cat at idle. Sounds more aggressive thru the rpms though.
    Got a good sound clip of this?

  2. #17
    Join Date
    Feb 2016
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    sunrise/FL
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    Quote Originally Posted by 03Merc View Post
    SW Headers and no cats! Smells like a race car, sounds like a race car, but it's only a DTR....oh well.


    Sent from my iPhone using Tapatalk Pro
    lmao

  3. #18
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    Next door to my neighbor
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    Quote Originally Posted by Bad_S55 View Post
    I got rid of my cats & regret nothing. But I am running 18" Stainless Works turbo mufflers, so it's classy around town & screams at WOT. Funny how I haven't thrown a CEL yet. It's been a week & there aren't any active or pending codes.


    Does your tune allow any CELs to light up?


    Sent from my iPhone using Tapatalk
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  4. #19
    Quote Originally Posted by RubberCtyRauder View Post
    It's a 281 cubic inch motor, it's never gonna sound loud at idle, being stock. put some aero mufflers on..it will be loud and stupid obnoxious
    Aero mufflers FTW!

    2004 Silver Birch
    300B
    Build date:9/29/2003, Adopted on 12/02/05
    Exhaust by Greg
    13.630 @ 100.49 mph (11/21/10)

    2015 Ford Focus SE Sport FWD
    2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
    2010 Ford Fusion Sport FWD
    1989.5 Ford Mustang 5.0 LXsport

  5. #20
    Join Date
    Dec 2015
    Location
    Blytheville, Ar
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    Quote Originally Posted by RubberCtyRauder View Post
    small engine is what matters...Ever hear a big block? lots more volume of air leaving the cylinders...
    Lol then explain how I could hear my riding lawn mower idle from a mile away when it's muffler rusted out.

    Sent from my SCH-S968C using Tapatalk

  6. #21
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    different kind of motor, 2 cycle, 4 stroke whatever, believe whatever you want, go ahead and make your stock slow marauder sound all mean and nasty. and then e a d.
    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"

  7. #22
    Join Date
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    Blytheville, Ar
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    Quote Originally Posted by RubberCtyRauder View Post
    different kind of motor, 2 cycle, 4 stroke whatever, believe whatever you want, go ahead and make your stock slow marauder sound all mean and nasty. and then e a d.
    you say you want to eat a di ck? Well, that's your prerogative there pal...have fun

    Sent from my SCH-S968C using Tapatalk

  8. #23
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
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    sorry if you dont understand physics, displacement and how 281 cubic inches in a mod motor with the long exhaust of a marauder effects the sound. and you must have mis-read e a d, there was no I involved. bhave a good time with your exhaust. options have been given, how you choose to use them is up to you.
    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"

  9. #24
    Join Date
    Dec 2015
    Location
    Blytheville, Ar
    Age
    40
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    Quote Originally Posted by RubberCtyRauder View Post
    sorry if you dont understand physics, displacement and how 281 cubic inches in a mod motor with the long exhaust of a marauder effects the sound. and you must have mis-read e a d, there was no I involved. bhave a good time with your exhaust. options have been given, how you choose to use them is up to you.
    Oh duhr, I big dummay, I no physics

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  10. #25
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    This thread is going places.

  11. #26
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    Truth. I've ran open headers and it sounds pathetic compared to even a Chevy 350!

    Displacement, plain and simple.


    Sent from my iPhone using Tapatalk
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  12. #27
    Join Date
    Dec 2015
    Location
    Blytheville, Ar
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    46
    Things got a little off topic.
    I was just curious if anyone had taken off all their cats, and if so if it cause any gremlins besides a check engine light.

    Sent from my SCH-S968C using Tapatalk

  13. #28
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    Dec 2014
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    Saint Clair Shores, Michigan
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    Quote Originally Posted by justbob View Post
    Does your tune allow any CELs to light up?


    Sent from my iPhone using Tapatalk
    Good question. I'll have to look into that. When Lidio tuned my car I know he turned off the rear O2s, so it stands to reason that he changed what throws a code for the front.

    2005 Mercury S55
    Saleen Supercharged 2V

  14. #29
    Join Date
    Jan 2017
    Location
    Springfield Mo
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    198
    The front or upstream oxygen sensors sniff the exhaust and determine if the air fuel ratio is within spec. The second set behind the cats or downstream oxygen sensors monitor if the cats are doing their job. My tune deleted the rears but the front remain unchanged. They have nothing to do with what comes after them.

  15. #30
    Join Date
    Mar 2008
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    Quote Originally Posted by Bad_S55 View Post
    Good question. I'll have to look into that. When Lidio tuned my car I know he turned off the rear O2s, so it stands to reason that he changed what throws a code for the front.


    Just asking because I had issues once with an old old tune loaded. I put the stock one back in and immediately it thru something like NINE codes... Now with the addition of bolt ons I had expected a hand full but even the misfire monitor was somehow turned off.




    Sent from my iPhone using Tapatalk
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

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