1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

if you cut your exhaust before the muffler will it still pass smog?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by hoodratstormtroop, May 17, 2012.

  1. May 17, 2012 at 7:20 AM
    #1
    hoodratstormtroop

    hoodratstormtroop [OP] Well-Known Member

    Joined:
    Oct 31, 2010
    Member:
    #45487
    Messages:
    119
    Gender:
    Male
    santa cruz
    Vehicle:
    2006 4x4 tacoma TRD debadged
    GPS/dvd player in dash, tires, rims, window tint, tail lights, and sub.
    I wanted 2 cut my exhaust before the muffler so it does it show....will this pass smog? it will still have muffler and cad converter
     
  2. May 17, 2012 at 7:22 AM
    #2
    Bryan139

    Bryan139 I have a spectacular aura

    Joined:
    Aug 25, 2008
    Member:
    #8746
    Messages:
    546
    Gender:
    Male
    NJ
    Vehicle:
    '09 Sport
    I cut some wires here. Added some wires there.
    If you cut the exhaust before the muffler how is it still going to have one? Are you putting it back on?
     
  3. May 17, 2012 at 7:52 AM
    #3
    Maticuno

    Maticuno Resident Pine Swine

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,903
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    Smog isn't the issue. The lack of the muffler being in the system and operating is.

    California Vehicle Code Section 27150, Adequate Muffler Required:
    (a) Every motor vehicle subject to registration shall at all times be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise, and no muffler or exhaust system shall be equipped with a cutout, bypass, or similar device.

    California Vehicle Code Section 27151, Modification of Exhaust Systems:
    (a) No person shall modify the exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor of the vehicle so that the vehicle is not in compliance with the provisions of Section 27150 or exceeds the noise limits established for the type of vehicle... No person shall operate a motor vehicle with an exhaust system so modified.

    EDIT: Based on the other vehicle modifications you show and list, it seems you are a fan of violating all sorts of vehicle code laws, so the above probably won't stop you from doing it even more.
     
  4. May 17, 2012 at 8:05 AM
    #4
    Zombie Runner

    Zombie Runner Are these black helicopters for me?

    Joined:
    Mar 13, 2008
    Member:
    #5246
    Messages:
    15,036
    Gender:
    Male
    First Name:
    Kevin
    Wichita Falls, TX
    Vehicle:
    Tundra, double cab.
    LED interior lights, stubby antenna, Pioneer in dash screen, good driver mod.
    If you bought your truck then you should know better than that.
    If your parents bought the truck then dont go fucking up their truck.


    you will look back and be glad you didnt do this "mod".
     
  5. May 17, 2012 at 8:13 AM
    #5
    Zombie Runner

    Zombie Runner Are these black helicopters for me?

    Joined:
    Mar 13, 2008
    Member:
    #5246
    Messages:
    15,036
    Gender:
    Male
    First Name:
    Kevin
    Wichita Falls, TX
    Vehicle:
    Tundra, double cab.
    LED interior lights, stubby antenna, Pioneer in dash screen, good driver mod.
  6. May 17, 2012 at 9:32 AM
    #6
    oldstick

    oldstick Middle Age Member

    Joined:
    Feb 17, 2011
    Member:
    #51331
    Messages:
    1,020
    Gender:
    Male
    Yeah, he would definitely attract a lot of attention (especially the cops) with that mod...:D

    But I assume he meant to change or reroute the tailpipe and muffler??
     
  7. May 17, 2012 at 9:38 AM
    #7
    04LTtacoma

    04LTtacoma Well-Known Member

    Joined:
    May 15, 2010
    Member:
    #37190
    Messages:
    11,138
    Gender:
    Male
    Vehicle:
    2004 SR5 TRD tacoma
    Camburg LT
    OP you will not gain any performance after removing the muffler from your exhaust system.

    Why dont you get a set of high flow cats and a different muffler?
     
  8. May 17, 2012 at 10:05 AM
    #8
    KenLyns

    KenLyns Lord of War

    Joined:
    May 23, 2010
    Member:
    #37674
    Messages:
    25,178
    Gender:
    Male
    Belly of the Beast
    Vehicle:
    4x4 TRD Off Road Full-Auto
    All-Pro Bumper, CBI Sliders, Icon Coilovers, BudBuilt Skids, aFe Intake, Icon VS Rear Shocks, Timbren Bumpstops, All-Pro UCAs, JDM Steering Wheel, ViAir Compressor, Klearz LED 3rd Brake Light, Pop-N-Lock Tailgate Handle, Husky Front Flaps
    OP, after cutting off the muffler, do you intend to weld on a downward-facing nozzle? If not, the hot exhaust gases will be aimed at the frame and floorpan. The exhaust is typically cut aft of the rear axle so it fires downward.
     
  9. May 17, 2012 at 10:10 AM
    #9
    jprovence

    jprovence Well-Known Member

    Joined:
    Dec 20, 2011
    Member:
    #69099
    Messages:
    160
    Gender:
    Male
    First Name:
    Joshua
    Albany
    Vehicle:
    11' Tacoma TRD
    Stock
    All your hats have a flat bill don't they?
     
  10. May 17, 2012 at 10:31 AM
    #10
    Zombie Runner

    Zombie Runner Are these black helicopters for me?

    Joined:
    Mar 13, 2008
    Member:
    #5246
    Messages:
    15,036
    Gender:
    Male
    First Name:
    Kevin
    Wichita Falls, TX
    Vehicle:
    Tundra, double cab.
    LED interior lights, stubby antenna, Pioneer in dash screen, good driver mod.
    meh, I have flat bills and I am in no way a bro .

    But im catching what your throwing ;)
     
  11. May 17, 2012 at 10:32 AM
    #11
    Utard

    Utard Well-Known Member

    Joined:
    Nov 5, 2011
    Member:
    #66532
    Messages:
    3,139
    Gender:
    Male
    First Name:
    Mark
    Nyssa, Oregon
    Vehicle:
    2012 DC LB 4WD TRD SPORT NAVI
    ------------------------------------------------------------ Stabilus.EZDown.Tailgate http://www.ezdown.com/home.php ----------------------------------------------- Tekonsha.Primus.IQ.Trailer.brake http://www.tekonsha.com/content/default.aspx---------------------------------------------------------------- Leer 180 CC http://www.leer.com/Truck-Caps#------------------------------------------------ Firestone Air Rite Air Bags--------------------------------------Kargomaster Rack
    On newer vehicles they don't even put a probe in the tail pipe. They plug in to your computer. So.......No this will not help.
     
  12. May 17, 2012 at 10:37 AM
    #12
    jjew18

    jjew18 the Nightman cometh!

    Joined:
    May 17, 2009
    Member:
    #17315
    Messages:
    6,250
    Gender:
    Male
    First Name:
    John
    Alliance Airport
    Vehicle:
    05 PreRunner SR5
    Added extra awesomeness to its original awesomeness.
    So you are really wondering if leaving the muffler on the truck but not actually functioning as part of the exhaust system will allow you to pass an emissions test? Just throw the muffler in the bed and let them know you still have it and you should be good.
     
  13. May 17, 2012 at 10:42 AM
    #13
    VolcomTacoma

    VolcomTacoma Well-Known Member

    Joined:
    May 25, 2011
    Member:
    #57205
    Messages:
    17,314
    Gender:
    Male
    Vehicle:
    2015 TRD Sport 4x4 6 Speed Supercharged
    Front- Camburg 4x4 Long Travel 2.5" King Coilovers 2.5" King Triple Bypasses Wheelers Superbumps Rear- DMZ SUA 16" 3.0 King Triple Bypasses 3" 2.0 Fox bumps Wheels and Tires- 295/75/16 Toyo ATII XTREME SCS SR8 Dark Matte Bronze 16" Lighting- (2) 30" Combo light bars (4) Iggycorp diffused pods Tepui Ayer TRD Supercharger URD Mark III 3" Exhaust URD 4x4 Y Pipe URD CAI URD 2.85 Stealth Pulley Hurst Core Shifter with Hurst T URD Stage 3 clutch URD Lightweight flywheel URD Throw out bearing upgrade AEM Wideband AFR Gauge Speedhut Boost Gauge Craven Speed Flex Pod mount Weathertech Floor Liners BAMF Sliders Ultragauge sPod SE ARB CKMTA12 Hella Supertone horns Relentless Tailgate Reinforcement
    Op, yes, it will be fine, cut your shit up ASAP! It will sound like a beast, bro!
     
  14. May 17, 2012 at 11:05 AM
    #14
    KenLyns

    KenLyns Lord of War

    Joined:
    May 23, 2010
    Member:
    #37674
    Messages:
    25,178
    Gender:
    Male
    Belly of the Beast
    Vehicle:
    4x4 TRD Off Road Full-Auto
    All-Pro Bumper, CBI Sliders, Icon Coilovers, BudBuilt Skids, aFe Intake, Icon VS Rear Shocks, Timbren Bumpstops, All-Pro UCAs, JDM Steering Wheel, ViAir Compressor, Klearz LED 3rd Brake Light, Pop-N-Lock Tailgate Handle, Husky Front Flaps
    Does the test technician do just an emission test, or does he check other items for compliance (lights working, etc.)?
     
  15. May 17, 2012 at 11:13 AM
    #15
    aznutx

    aznutx Well-Known Member

    Joined:
    Aug 25, 2011
    Member:
    #62372
    Messages:
    517
    Gender:
    Male
    DFW Texas
    Vehicle:
    2011 White TRD
    that OP didnt make any sense, but im guessing he means... to cut it off after the muffler, or before it , if you were looking from the back end. , and if that's the case, i dont see why it wouldnt pass, but you would get some sooty crap after a while underneath ur bed.
     
  16. May 17, 2012 at 11:15 AM
    #16
    jjew18

    jjew18 the Nightman cometh!

    Joined:
    May 17, 2009
    Member:
    #17315
    Messages:
    6,250
    Gender:
    Male
    First Name:
    John
    Alliance Airport
    Vehicle:
    05 PreRunner SR5
    Added extra awesomeness to its original awesomeness.
    Okay, I can see how that might be pieced together. Thus showing why grammar and punctuation are necessary.
     
  17. May 17, 2012 at 11:50 AM
    #17
    Maticuno

    Maticuno Resident Pine Swine

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,903
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    Since this thread is heading south rather quickly, I'll just add this for the OP:

    [​IMG]
     
  18. May 17, 2012 at 11:58 AM
    #18
    DrewH

    DrewH Well-Known Member

    Joined:
    Nov 27, 2010
    Member:
    #46791
    Messages:
    15,053
    Gender:
    Male
    I assume you mean you want to dump it over the axle after the muffler and yes you can and it shouldn't affect any testing.
     
  19. May 17, 2012 at 3:45 PM
    #19
    Mxpatriot

    Mxpatriot Arctic Prerunner

    Joined:
    Nov 18, 2009
    Member:
    #26163
    Messages:
    3,213
    Gender:
    Male
    First Name:
    Chase
    North Pole, Alaska
    Vehicle:
    '06 4x4 AP LT and Locked
    Money pit.
    Sounds to me like he is referring to the muffler tip. If that's the case, yes, you can cut off as much as you want as long as you don't cut out the actual muffler (OP, crawl under the truck, you'll see it...). I'd recommend cutting it so it turns down away from the cab.
     
  20. May 18, 2012 at 3:58 AM
    #20
    hoodratstormtroop

    hoodratstormtroop [OP] Well-Known Member

    Joined:
    Oct 31, 2010
    Member:
    #45487
    Messages:
    119
    Gender:
    Male
    santa cruz
    Vehicle:
    2006 4x4 tacoma TRD debadged
    GPS/dvd player in dash, tires, rims, window tint, tail lights, and sub.
    i wanted 2 cut the pipe right before the spare wheel, since i do not want it showing! also, i wanted 2 get a tip facing down so it does not burn a hole threw the spare....
     
To Top