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Cat-back

Discussion in 'Performance and Tuning' started by Dustydirt19, Sep 15, 2016.

  1. Sep 15, 2016 at 3:56 PM
    #1
    Dustydirt19

    Dustydirt19 [OP] Hoghead

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    Dustin
    Duluth, MN
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    2015 Blue Ribbon Metallic 5.7L 4WD SR5 TRD DC
    ProComp 6" stage 2 lift 18x9 Fuel Vapor -12 offset 35x12.5 Nitto Ridge Grapplers BullyDog Tuner Gibson Metal Mulisha cat-back exhaust, S&B cold air intake, Color matched TRD PRO Grille, Compustar Remote Start N-Fab Hooped Nerf Bars, AMI Big stick antenna, Salex organizer and tray, Weathertech laser cut floor mats, Weathertech window deflectors Black out badge Black out front and rear bumper Black out flags 24/7 black out TRD Off-road decals Spray in Line-X Bedliner Scosche phone mount Soft rolling tonneau cover TRD pedals and footrest
    I'm installing a gibson metal mulisha cat back exhaust on my ride. Because the cat isn't getting messed with, the check engine light shouldn't come on after the install correct?
     
  2. Sep 15, 2016 at 4:08 PM
    #2
    Relentless

    Relentless Tundra newb Vendor

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    Just a few, more to come
    Should be no reason to see a CEL after the exhaust install. Just disconnect the ground of the battery when you start and re connect when done to let the ECU re-adjust.
     
  3. Sep 15, 2016 at 4:14 PM
    #3
    Dustydirt19

    Dustydirt19 [OP] Hoghead

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    ProComp 6" stage 2 lift 18x9 Fuel Vapor -12 offset 35x12.5 Nitto Ridge Grapplers BullyDog Tuner Gibson Metal Mulisha cat-back exhaust, S&B cold air intake, Color matched TRD PRO Grille, Compustar Remote Start N-Fab Hooped Nerf Bars, AMI Big stick antenna, Salex organizer and tray, Weathertech laser cut floor mats, Weathertech window deflectors Black out badge Black out front and rear bumper Black out flags 24/7 black out TRD Off-road decals Spray in Line-X Bedliner Scosche phone mount Soft rolling tonneau cover TRD pedals and footrest
    Cool. That's what I thought just wanted to make sure. Thanks
     
  4. Sep 15, 2016 at 6:29 PM
    #4
    Abrams65

    Abrams65 New Member

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    Not understanding the need for this. Its all downstream from the catalytic converter and O2 sensors.
     
  5. Sep 16, 2016 at 7:50 AM
    #5
    Relentless

    Relentless Tundra newb Vendor

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    East of the Sierras(Reno), Nevada
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    Just a few, more to come
    Higher flow exhaust = more efficient = more power. But from my understanding it's recommended to let the ECU re learn after any performance mods so it can adjust. Aftermarket intakes are the same way and usually even states to do so in the install instructions.
     
    Mordak likes this.
  6. Sep 16, 2016 at 8:18 AM
    #6
    chphilo

    chphilo Tundra addict

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    I don't think you have to disconnect the battery. I never did with my exhaust nor with my intake. I think it's just more efficient to disconnect the battery to speed up the ECU's adjusting process.
     
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