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MAK Performance catted mid pipe and emissions testing

rojizostang

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I'm asking to see if anyone that is running this pipe has been subjected to OBDII testing and if you passed? I'm not talking about just not throwing a CEL, but actually getting all the monitors to ready. Testing is coming to our area and want to make sure any future exhaust mods will actually pass OBDII testing.

2015-2023 Mustang GT MAK Performance Pipes-mak-mus15001
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illadvised

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I do not have these, but it says it passes in 48 states so it 'should' pass. This is more of a tuner question than anything if it is supposed to pass. Do you have an aftermarket tune, or are you on the stock one? If you have an aftermarket tuner, you have to communicate with them and see if your monitors are still able to get into a ready state with their tune. With some tunes, they will have no check engine lights but some monitors will never go into a ready state.

Ask your tuner if this should work, they should know more than us
 
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rojizostang

rojizostang

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yes i have an aftermarket tune, but none of the reputable tuners these days are going to touch any emissions related parameters.

MAK's site even states the "48 state cats" may still throw a CEL. Not throwing a CEL is a much lower threshold than having all the I/M monitors actually attain readiness.

the question is fairly specific actually, for those who are subjected to OBDII testing, and not just testing for check engine lights.
 

KingKona

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yes i have an aftermarket tune, but none of the reputable tuners these days are going to touch any emissions related parameters.

MAK's site even states the "48 state cats" may still throw a CEL. Not throwing a CEL is a much lower threshold than having all the I/M monitors actually attain readiness.

the question is fairly specific actually, for those who are subjected to OBDII testing, and not just testing for check engine lights.
It says it passes. It's 48 state legal.

It's clear you're confused. No states "test" for check engine lights, that's not a thing.
 
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rojizostang

rojizostang

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It says it passes. It's 48 state legal.

It's clear you're confused. No states "test" for check engine lights, that's not a thing.
i'm making an assumption that some might, but it's beside the point. OBDII testing is all about i/m readiness. if there are cel's in addition to or instead of incomplete monitors, they'll fail.

nonetheless, this thread is about passing i/m readiness. are you familiar with i/m readiness monitors?

do you have a mak performance pipe that passes i/m readiness? that's the pertinent question.

in fact i spoke to an obdII inspection station near our area. even just removing the stock cats are illegal, even if they're replaced with aftermarket cats that actually pass.

perhaps i should have restated the thread title, " do you have a mak performance pipe that passes i/m readiness?".
 
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rojizostang

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i'm ok if the admins want to close this thread. i'll start a new more specific thread.
 

ORRadtech

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You need to read and understand whatever laws are coming your way. There are several states and jurisdictions that do OBDII testing and several of them allow a few (usually 2 or 3) monitors to not be ready. Some don't.
And I can tell you for a fact that in the Atlanta metro area if you have a CEL illuminated you will fail emissions testing. They won't even connect the OBD tester. I have personally passed emissions with no CEL but two systems showing "not ready". If memory serves, we are allowed 3.
But again, read and understand your new laws on the subject.
 
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rojizostang

rojizostang

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You need to read and understand whatever laws are coming your way. There are several states and jurisdictions that do OBDII testing and several of them allow a few (usually 2 or 3) monitors to not be ready. Some don't.
And I can tell you for a fact that in the Atlanta metro area if you have a CEL illuminated you will fail emissions testing. They won't even connect the OBD tester. I have personally passed emissions with no CEL but two systems showing "not ready". If memory serves, we are allowed 3.
But again, read and understand your new laws on the subject.
i do and i have

in texas, we're allowed one monitor to not be ready, if the car is newer than ym 2000.

this will have to be modified at some point, because in those areas that are subject, all private motor cars from 2 to 24 years old are subject. obviously in 2025, all that are subject to testing will be able to pass with only one monitor being not ready
 
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rojizostang

rojizostang

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the point is to not spend a lot of money on exhaust mods that will have to be undone every year to pass i/m readiness
 

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Let's try this another way;

In what way do you imagine that these catted mid-pipes could cause you to fail emissions testing?

And have you called MAK?
 

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illadvised

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yes i have an aftermarket tune, but none of the reputable tuners these days are going to touch any emissions related parameters.
If your current tune does not let enough of those monitors go into a ready state, then you will fail. You can have all stock parts, this exhaust, or an LS in it. You will fail once they plug the device in.

You need to check with your tuning device, or an OBDII scanner to see if they are ready right now. I am sure there are still tuners where these will go into a ready state, that doesn't mean they are 'supposed' to pass smog. Your car might be fine and pass right now, and if so then swapping to this exhaust should work fine
 

illadvised

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the point is to not spend a lot of money on exhaust mods that will have to be undone every year to pass i/m readiness
Just keep your cats then and only change catback or mufflers? It won't change hp that much anyways, go with a smog legal supercharger ;)
 
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rojizostang

rojizostang

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Let's try this another way;

In what way do you imagine that these catted mid-pipes could cause you to fail emissions testing?

And have you called MAK?
the cell count on the aftermarket pipes I imagine at most is probably around 400, whereas the originals are somewhere in the neighborhood of 750. I have submitted the question to MAK, and haven't heard back.

again, do you have a MAK performance pipe that passes with all the monitors setting to the ready state? If you do, great, thanks for posting. If not, please let someone who knows the issue answer the question.
 
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rojizostang

rojizostang

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If your current tune does not let enough of those monitors go into a ready state, then you will fail. You can have all stock parts, this exhaust, or an LS in it. You will fail once they plug the device in.

You need to check with your tuning device, or an OBDII scanner to see if they are ready right now. I am sure there are still tuners where these will go into a ready state, that doesn't mean they are 'supposed' to pass smog. Your car might be fine and pass right now, and if so then swapping to this exhaust should work fine
the x4 checks codes and clears codes but it doesn't tell monitor readiness, which is what i use.

the current tune is fine, but it still has the stock cats in place. i have a scanner that checks obd readiness, however it actually isn't necessary. it can also be checked with forscan. in addition, all one has to do is turn the key to the on position without starting the car and wait about 30 seconds. if the check engine light starts flashing, the monitors are incomplete.

i've done the boosted thing. not going that route on this car.
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