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07-31-2021, 01:43 AM
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#1 |
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California Legal Exhaust Mods?
Anyone know what you can do to your exhaust and still pass smog in California? I have a 2017 RS and I was looking into either an axle back or cat back set up, but I don't know if getting rid of the secondary cats will allow me to pass smog. Also what about an x or h pipe? Not worried about sound limitations as it's only a v6, but what all can I do while still passing emissions?
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07-31-2021, 07:58 AM
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#2 |
          
Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020
Location: Earth
Posts: 4,032
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Move to Texas or Arizona like everyone else.
Sorry I had to Seriously, call a reputable shop and ask, they should certainly know.
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2023 Camaro ZL1 Vert TR-6060 Sharkskin "Sharky"
Firecracker Red Wrangler Willys, 3.6L eTorque, 850RE 8 speed automatic, 25W Willys package, Technology Group, Convenience Group (aka $600 garage door opener), Cold weather Group, Trailer Tow and HD electric group with AUX switches, 3 piece black freedom top. |
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07-31-2021, 09:45 AM
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#3 | |
Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019
Location: Jax/Palatka FL
Posts: 1,090
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07-31-2021, 10:52 AM
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#4 |
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Monterey County Camaros
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Axleback only. Can't really do much out here in general to cars. Can't really even tune anymore unless it's approved by the air resource board
www.motortrend.com/news/california-illegal-ecm-tuning-smog-test/amp/
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07-31-2021, 10:56 AM
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#5 |
 
Drives: 2018 NFG ZL1-1LE Join Date: Jun 2018
Location: Near the water
Posts: 304
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As long as you do not remove or modify the cats or any emissions related components, you will be fine smog wise. I have the Borla “S” type cat back and are fine since it starts just behind the second set of cats. Removing or modifying the cats is a guaranteed failure. Also, a loud modified exhaust can be reason to initiate a traffic stop. The officer can then site you for modified exhaust and send you to a referee station. At that point they will scrutinize every part of the emissions system and exhaust DB level. Yes, this state sucks big time!
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07-31-2021, 11:01 AM
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#6 |
Drives: 2018 2SS 1LE Black Join Date: Aug 2018
Location: Cape Cod
Posts: 638
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I read somewhere CARB is proposing a photo database of the underside of vehicles that will compare to the test vehicle, if the components don't match you fail. Can you imagine the damage to the aftermarket exhaust market and the damage to your wallet as you'll have to purchase OEM CAT's and pipes? No end to what the commies can dream up it seems.
You guys in CA are about to lose access to bacon, bacon!! https://www.yahoo.com/news/bacon-may...141827828.html |
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07-31-2021, 11:57 AM
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#7 | |
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2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,031
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Quote:
Yet another reason I'm leaving Kalifornia the day I retire in 5-6 years...
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...  |
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07-31-2021, 12:08 PM
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#8 |
Drives: [COTW 8/3/15] 2010 Camaro SS L99 Join Date: Mar 2015
Location: Mooresville NC
Posts: 434
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After leaving, I like watching this crazy stuff from a distance.
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A Little bit of power. ALL WORK DONE BY ME!
Just added 2021 ZL1 1LE to the Stable! https://www.camaro5.com/forums/showthread.php?t=418273  |
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08-01-2021, 08:52 AM
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#9 |
Drives: 2021 300 Join Date: Jan 2015
Location: New Jersey
Posts: 968
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NJ inspection stations have the cameras in the ground already but not using the software yet.
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08-01-2021, 09:45 AM
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#10 |
Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019
Location: Erlanger, Kentucky 41018
Posts: 815
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It might still be legal in CA to make some “vroom vroom” sounds with your mouth but it’s best to consult a lawyer before you do that just in case.
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08-01-2021, 10:49 AM
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#11 | |
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
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Quote:
https://www.yahoo.com/news/bacon-may...141827828.html Don't worry, Turkey Bacon is just as good..... 
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2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD Last edited by avalonandl; 08-01-2021 at 11:05 AM. |
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08-01-2021, 10:50 AM
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#12 | |
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Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
Posts: 1,150
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Quote:
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21  |
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08-01-2021, 11:26 AM
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#13 |
 Drives: 2018 ZL1 1LE White Join Date: Jun 2017
Location: Clovis, CA
Posts: 215
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Yep, CA sucks.........until we're driving in beautiful weather all winter while East coast dudes are putting their cars away like bears in hibernation.......LOL
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08-01-2021, 11:41 AM
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#14 | |
  
Drives: 2011 2SS/RS LS3 Join Date: Nov 2011
Location: Torrance
Posts: 14,428
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Quote:
Basically no mods to cats, no cut-outs or by-passes, exhaust must include mufflers that do not exceed 95db...Good luck. Also any traffic stop for loud exhaust is a mandatory fine and citation. No more "fix-it" tickets. Smog Referee, db check, fine and court date with proof of correction are required. |
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