Pulled over with Borla ATAK exhaust

[Cali392JL]

That’s a good idea. I’m wondering if there’s a way to manually disable the valve opening regardless of the switch. It is electronic after all.

The exhaust quiet valve is actually not electrical. What actually opens and closes the valve is a vacuum hose. You could unplug the hose on both sides in less than a minute. I I am not sure if no vacuum is the loud mode or quiet mode, it would be good to test that. If it is the quiet mode, then you have a good solution. Do not leave the vacuum hoses open to atmosphere, put a small screw in the end of each one of them.

 

[guruman]

The exhaust quiet valve is actually not electrical. What actually opens and closes the valve is a vacuum hose. You could unplug the hose on both sides in less than a minute. I I am not sure if no vacuum is the loud mode or quiet mode, it would be good to test that. If it is the quiet mode, then you have a good solution. Do not leave the vacuum hoses open to atmosphere, put a small screw in the end of each one of them.

No vacuum is loud mode, ensuring that startup sound is epic every time.

 

[Cali392JL]

No vacuum is loud mode, ensuring that startup sound is epic every time.

well......that won't work.

 

[Overkill]

I looked at mine earlier and it would be possible to pull the valve closed and wire it so it stays closed. Mine is the stock exhaust, not Borla. But, I would think their actuators would be similar.

 

[Robr651]

Worst case scenario you can add the S Type resonators from Borla to appease the nonsense referee. Hopefully that gets you below the 95db. It might be worth a call to Borla to ask them what they think.

Borla atak vs s type resonators

Got tired of atak hurting my ears so called borla and ordered s type resonators. Definitely can tell a difference. Not as raspy. Still plenty loud but takes the sharp edge off. Atak has 3 solid tubes and 1 perforated tube S type has 4 perforated tubes. At first I thought they were the...

www.jeep392.com

 

[dpsmedic]

Hopefully that gets you below the 95db.

Borla atak vs s type resonators

Got tired of atak hurting my ears so called borla and ordered s type resonators. Definitely can tell a difference. Not as raspy. Still plenty loud but takes the sharp edge off. Atak has 3 solid tubes and 1 perforated tube S type has 4 perforated tubes. At first I thought they were the...

www.jeep392.com

I did some searching as I have the Borla S-Type and have wondered what the ramifications could be if I were stopped for a loud exhaust.

It appears from reviewing the CVC Section 27204 - Noise limits applicable to motor vehicle the actual “NOISE LIMIT - dbA” is “80” for a vehicle with a “GVWR-Pounds” of over 6,000 but not over 8,500 manufactured after 1977. (GVWR on my 2022 392 is 6,100lbs). So the allowable dbA for a vehicle over 6000 lbs ie: 2022 392, is 80 dbA not the commonly referenced 95 dbA.

Section 27151 - Modification of exhaust system to amplify or increase noise prohibited
This is where the commonly referenced 95 dbA is located, but you then need to look into the sections starting with 27200 to find the allowable dbA by GVWR.

Section 27151 outlines the testing procedure as being done by CHP in accordance with SAE standards.

In reviewing CHP legislative documents available online and OAL reviews on changes proposed to the vehicle code by the CHP , it appears they do not incorporate the testing standards in online documents as the documents are copyright protected by SAE. What I did find was that you can view the SAE testing document by appointment at The CHP, Commercial Vehicle Section (which appears to be in Sacramento). That SAE document (if I found the correct one) is available for purchase at the below link:

Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method

The website does state:

“This SAE Recommended Practice establishes the test procedure, environment, and instrumentation to be used for measuring the exterior exhaust sound level for passenger cars, multipurpose vehicles, and light trucks under stationary conditions providing a continuous measure of exhaust system or simulated exhaust sound level over a range of engine speeds or simulated engine speeds.”

To obtain the “range of engine speeds or simulated engine speeds”, I imagine they have to access the vehicle to change the RPMs of the engine. Hopefully the tech does a slow gentle increase of the RPMs….

In reviewing how and where to do the actual testing process, I found the website of the SMOG CHECK REFEREE PROGRAM from the Bureau of Automotive Repair and at the bottom it states:

NOTE: The Referee is unable to perform a decibel reading on vehicles with a Gross Vehicle Weight Rating (GVWR) greater than 5,999 lbs. To verify the weight, please see the sticker located in the driver’s door pillar/jamb. If greater than 5,999 lbs, contact the court for further guidance.


Let us know how it your process plays out.

 

[sbrimer]

Good lord.

My first thought on this was to take the simple position of the "quiet" button. Sure, they can say you can turn the quiet off and at some point it could be too loud; but that that's like writing everyone a ticket because their car could, at some point, and is capable, of going faster than the speed limit.

There are a few situations that make me glad that I live in Florida........this is one of them.

 

[Dusty]

Haha if they don’t mess with it… not sure how savvy these guys are

If they can turn down the volume on a radio, we can turn down the muffler, they logically should not be turning button on.... Logically!! but Comifornia....who knows?

 

[Mid13field]

Thanks all for the input. CA is a bitch regarding these regulations and this entire process is asinine. Will keep you posted.

 

[CAMEL2R]

Thanks all for the input. CA is a bitch regarding these regulations and this entire process is asinine. Will keep you posted.

You got that right! It's all about $$$$ disguised as environmental. I'm wondering what CHP will say if I get pulled over with my open OEM exhaust. Uh, it's stock officer.

 

[Earl 392]

Hey Rob not dumb at all. I could keep it on quiet mode and hope for the best but I’m sure these guys will know or at least figure out how to open the valves… the button also has the exhaust icon on it…

Black tape . Temporary of course

 

[Mid13field]

Black tape . Temporary of course

I’ve thought about it lol

 

[Earl 392]

I’ve thought about it lol

They have no business pushing buttons on your Jeep.
Mark it ejection seat.

 

[hardhat]

Worst case scenario you can add the S Type resonators from Borla to appease the nonsense referee. Hopefully that gets you below the 95db. It might be worth a call to Borla to ask them what they think.

Borla atak vs s type resonators

Got tired of atak hurting my ears so called borla and ordered s type resonators. Definitely can tell a difference. Not as raspy. Still plenty loud but takes the sharp edge off. Atak has 3 solid tubes and 1 perforated tube S type has 4 perforated tubes. At first I thought they were the...

www.jeep392.com

The s type is still plenty loud but does take the sharp edge off the atak sound. The atak hurt my ears. S type just right for me

 

[Tank2112]

Hi all,
I am a California resident and was recently pulled over for “loud exhaust.” I have a Borla ATAK system and I’m concerned that my 392 won’t pass the decibel testing…
Anyone else run into this?
Thoughts?

You're problem to begin with is.... you live in CA ...lol...
Were you ticketed or just a warning?

 

[Tank2112]

You might reach out to Borla themselves and see if they can give you any kind of documentation that confirms that their system is a 50 state legal system, I bet it is, but that probably applies to emissions control only but might be good to have in your hand when you go to get the sound test done or go to the referee. I agree with the previous posters that say you should leave it in the quiet mode and don't take it out. If they ask you to come up with some excuse of why not. And it should pass easily in the quiet mode. I have had to do this once before on a previous car in California and I don't remember the RPM levels that they require you take the vehicle to, but it is reasonably high and I was cited for excessive noise on my other vehicle by the sound test referee. The solution was to get the tickets signed off by any law-enforcement officer, and fortunately I knew an officer that thought the rule was so stupid. They just signed it off for me.

Some aftermarket exhaust systems quote "For Offroad Use Only" to limit their liability.

 

[NYCAK47]

Hi all,
I am a California resident and was recently pulled over for “loud exhaust.” I have a Borla ATAK system and I’m concerned that my 392 won’t pass the decibel testing…
Anyone else run into this?
Thoughts?

That’s awesome!! . I’m jealous. I want one of those exhausts for my 392.

I would check with the person doing the inspection if they have an issue testing your Jeep on quiet mode, before the inspection starts. If they say yes, find someone who will comply. Someone is willing to do it for sure.

 

[Cali392JL]

I am not exactly in your shoes as I have the Magnaflow rock crawler exhaust, which is probably about the same as the factory exhaust in open mode and has no closed/quiet mode.

I spoke to Magnaflow today and the system is 50 state emissions compliant, but they make no claims as to noise compliance, and apparently the noise compliance issue is different in different states. I also live in California, and was being followed by a sheriff the other day while I was going up a hill and had to do everything I could to stay off the skinny pedal and keep it as quiet as possible, as I thought he was paying attention. I am glad I kept my stock exhaust!

 

[paparex]

Hi all,
I am a California resident and was recently pulled over for “loud exhaust.” I have a Borla ATAK system and I’m concerned that my 392 won’t pass the decibel testing…
Anyone else run into this?
Thoughts?

First mistake California resident, kidding i have the same exhaust shipping my jeep to CA next month ill keep the performance exhaust off till i hit the trails

 

[Mid13field]

They have no business pushing buttons on your Jeep.
Mark it ejection seat.

Hah!