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i heard back from MAk, and they told me whether or not the car would pass i/m readiness would depend mostly on the tune. i disagree....don't think there's anyone left that's willing to massage emissions parameters to make something like this, with high flow cats, work, or no cats even less. i...

18+ air box drops right in. no issues. first hand experience. the 23 air gt box carbon trap pops right out. no issue there either. i've done both, adding an 18+ to a 17 and removing the carbon trap from a '23 gt. as mentioned, a re-tune will be needed if putting the 18+ on a 15-17 because the...

the 2m fabrication pipe has flanges to weld on the header and take off stock cat. it can be re-installed with the stock exhaust pipe. it's basically a test pipe set up except you remove the pipes all the way to the resonator instead of just the section with the cat in it. 2015-2024 Mustang GT...

exactly. that's why i'm trying to find someone who's been successful with this set up before taking the dive.

i get it, however the mak pipe has the cats in the stock location. like mentioned in my other thread, i'm sure they're 400 cells or less....and probably the reason mak won't guarantee there's not going to be a cel.....or even more pass readiness testing. i think it's a new offering as their...

i'm not averse to using spacers. i've done it before, however all the monitors wouldn't set on the previous mustang. the issue being afaik, the cats being in a place other than original. do you have the MAK pipe?

ttt

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...

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 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

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...

This is a specific question for those who are subject to i/m readiness testing. Does your mak performance pipe pass i/m readiness testing, regardless of what the manufacturer says about the cats being legal. 2015-2023 Mustang GT MAK Performance Pipes-mak-mus15001 we're not talking about...

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

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...

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...

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...

i would like to know if this works. i worry that moving the cats so far downstream from their original position lends the exhaust temps to being out of range for the cats. i always got the same codes you got. it's just a theory of course, but a local shop also told me he just has no way to do...

just not having cel's is a whole different level of preparedness than actually passing i/m readiness testing. my last mustang didn't throw o2 codes but the monitors would never complete. those are what are looked at when a car undergoes obdII emissions testing. even if the car doesn't throw...

subscribed want to hear what folks have to say since obdII testing is coming to our area. i'm holding off on all exhaust mods until i know i can pass i/m readiness testing with long tubes and high flow cats