Spark plug foulers

TheJudge

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Have the new exhaust coming.
My question is will the spark plug foulers work on the car if i put cat delete pipes on it?Has anyone had any success without going to a tune?In a 2011-2013 mustang,
 

Bowtie-X

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I actually looked into this and unfortunately mil eliminators or fouler will not work on 11-13 coyote. Only option is tune.


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murse

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grabber blue gt

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That's pretty cool, but at $25 a piece (x2) that's expensive... there is plenty of room to use 2 foulers and not hit anything.

Yeah but people have said that it still sets off a CEL even with 2 stacked. Apparently the bend in the vibrant non fouler does a good job. I have 2 sitting on my dresser that I havent installed yet
 

stang910

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I had nonfoulers in my car and the catalyst and O2 readiness monitors never completed no matter how much I drove the car. I put the stock mufflers on and the readiness monitors completed with no CEL. Not sure why it worked with the stock mufflers and not the hushpower's I had.
 

TheJudge

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Probably because you still corked it up just at the end instead of all at the cats
 

murse

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Is there any shops that have had any luck so far getting yes and no's

not sure what you mean, but like I mentioned I am using the 2 fouler per side for approx 6 months and around 9-10k miles with no CEL. it works
 

CobraHuck

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I've got a Lethal ORX, no tune (yet), and 2 pair of non-foulers for the o2s. Left one pair alone and screwed them in the pipe, drilled out the second pair large enough (1/2" bit) for the o2s to screw all the way in then screwed them into the first pair. Then put in the o2s.

Worked great for about 2 months with no CEL, now I get the CEL about once a month or so. I just clear it and rock on, no problem
 

svt5.4

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Any "side effects" to doing this...As in, messing up the car? Will the cat cooling cause an issue? Or will it be like it was stock but with the loud go pedal.

I wonder if a dealer would have a problem with me rolling into service with o2 foulers on?
 
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CobraHuck

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I have had zero issues other than the once-in-a-blue-moon CEL. When that pops up, it still doesn't affect the car, I just drive her easy till I can clear the code, just incase. Clear the code and go. Not sure what you're referring to as "cat cooling", but mine drives stock, just louder and a little more power.

As far as the dealer, it depends on the dealer and what the car is in for. Just service, etc I bet they'd never even notice. But if it's in for warranty work/etc it may cause problems. But like I said, it GREATLY depends on the dealer and your relationship with them
 

scotmach

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I have had zero issues other than the once-in-a-blue-moon CEL. When that pops up, it still doesn't affect the car, I just drive her easy till I can clear the code, just incase. Clear the code and go. Not sure what you're referring to as "cat cooling", but mine drives stock, just louder and a little more power.

You mean you know nothing of the COT feature which you choose to ignore?
 

CobraHuck

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You mean you know nothing of the COT feature which you choose to ignore?

The cat cooling? All I know is my car runs just fine :shrug: I do plan on a tune in the next month or two tho. I've heard people talk about cars "dumping" fuel to cool the cats. But I've also heard the same about trying to "light" the cats, so idk.

Please explain. Every car I've owned either already had the cats removed and been tuned for it, was old enough that it didn't have cats to start with, or like on my truck there was no point in messing with the tune/cats so they were stock. But I'm always eager to learn :beer:
 

CHIZ_65

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Just got longtubes and HiFlos installed...Got a custom tune with the rear 02s switched off. Got another tune on my tuner with the 02s turned on, just in case....Moving to Illinois (chicagoland area) and might have to go through emissions when i register. I figure I'll rock my no-O2 tune until I need the one with the O2s on to pass a "readiness" check...In the meantime, I think I'll do the double non-fouler on each of the rear 02s...can't hurt...and when and If i need to turn the sensors on, there should be no issues! right? ...
 

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