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I'm getting a off road x pipe cat delete for my 06 mustang gt and flowmaster outlaw axle backs do I need to get a new tune for my x-pipe? I've heard that you did but the people at bama says no tune needed for the x-pipe.... what do you guys think I thought you needed one for the 02 sensors or does your check engine light just stay on
When running any type of cat deletes, the rear 02 sensors need to be turned off in the calibration tune, otherwise, your check engine light will stay on.. If your unable to have the rear 02 sensors turned off by a tuning shop vendor? you can try either rear 02 sensor, non-fouler mini cat extensions or put up with the check engine light staying on.. Note: the check engine light will not cause any type of performance or negative related issues to your engine when running a cat delete setup. If interested in the rear 02 sensor, non-fouler mini cat extensions? The link is provided below..
Technically your vehicle can fail state inspection, if the inspector happens to notice the cats have been removed? it's often referred to as visual inspection. Even if your state has what's called emissions exemption which means if you put 5000 miles or less per year on your vehicle? you don't have to go through emissions inspection.. However, as just mentioned, the inspector can technically still fail the vehicle under visual inspection for removal of any portion of the OEM catalyst device/equipment which is illegal under federal law. In the end, it's all at the discretion of the inspector and station policies, as some perform visual inspections, while others, perhaps not quite necessarily as much
Last edited by m05fastbackGT; 6/28/21 at 10:41 AM.
personally I would not bother with the off-road X pipe; unless there is some other reason for it . . . you won't gain much power at all; and it will create problems like emissions and getting rid of the CEL on the dash
one other option for the X-pipe: get a tune from "Lito" to turn off the rear O2's; and you can fine tune everything else too while you're at it. I might have you mixed up with someone else, but I think you might be working with him already?
yes if you have emissions inspection you will need to reinstall the Cats and turn on the rear O2's for inspection; the key is that the rear O2's must be turned on, reporting "ready" status, and giving correct signal to indicate that the cats are working. You might be able to fool the rear O2's with the extenders but I think that is a bit hit-or-miss, not sure.
Sure, the OP may consider a tune for the X pipe from Lito, but there is no guarantee he'll turn the rear 02 sensors off despite being located outside of the U.S. Also, if the OP does not have the experience in data logging with a laptop? then a data logging tune required by Lito is also not a viable option for the OP.. Note: if running FI? a wideband 02 sensor bung will also require being welded in the mid pipe as well.
As also mentioned in a previous post, if the inspection station performs a visual inspection? the vehicle can still fail if the OEM cats have been removed
Last edited by m05fastbackGT; 6/28/21 at 11:38 PM.
Ok thank you... and can I turn those rear 02 sensors off with my bama tuner
I believe you can't. The can tuner companies won't do it because it violates emission laws. I had the same problem and ended up using the non fouler spark plug extension and it stopped setting codes. The foulers trick the computer by moving the sensor further out of the exhaust stream.
Even if the non-fouler plug extensions stop the check engine light? the OP's vehicle can still fail inspection if the inspection station performs a visual inspection and determines the OEM cats have been removed.
This was the main reason I decided against making the switch to running cat deletes.
luckily I have never seen an inspector do a visual here in Massachusetts, but I haven't tempted fate either . . . and I doubt I would get past the nasal inspection with no cats
(exhaust will smell like an old school muscle car, very noticeable once you recognize it)
Some here in PA do perform visual inspections and will refuse to pass the vehicle until the owner reinstalls the OEM cats. Therefore, this was my main reason for not wanting to tempt fate lol.
No I ain't looked but I was reading and it said they was 2 on one side and 1 on the other side.... I'd have to look... but even if they are 4 there is only 2 holes for them on the x-pipe ...I just bought these for my 06 gt
Ok I went and looked.... there is 4 but on the passenger side 1 02 is before the cat and 1 on the cat.... on the driver side the first 02 is in my header and the 2nd one in my cat.... there is only 2 holes for 02s on the x-pipe so the 1 that's in the cat on the passenger side I just need to unhook and have it shut off right....I leave the front drivers side in the header and plug in the back one to x-pipe and the passenger side the front one goes in x-pipe and back one gets shut off... am I right? Please let me know
6/26/21, 03:58 PM
