Any problems running full exhaust (including LT headers) with no tune?

[djpheer]

Just as stated in the title. Any negative affects from running full ARH exhaust (including the LT's) with no tune? Just trying to figure out what mods to do first, and I would like to get this out of the way before saving for intake/tune.

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[Ecoboosted]

Probably set off a CEL light.

 

[Nazgul]

You'll have a cell as mentioned above, but if doesn't do any damage.

 

[Jeffy_2010]

You could always run some O2 sensor spacers to pull the sensors out of the exhaust gases a bit.

 

[KilluminatiDre]

Would you have a CEL with catted headers too?

 

[Jeffy_2010]

Shouldn't

 

[2015 Silver GT]

You could always run some O2 sensor spacers to pull the sensors out of the exhaust gases a bit.

Except COT will still be on.

Would you have a CEL with catted headers too?

Yes.

Shouldn't

It will.

 

[Jeffy_2010]

Well alrighty then, I've ran both catted and non catted and done both things that I have stated and never had an issue but I'll take ur word for it

 

[Guard5.0]

Yes to the CEL, even with the spacers for me.

 

[djpheer]

Cool beans. As long as the engine doesn't go into limp mode or anything like that thinking something is wrong I am OK with a cel. Thanks

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[Jeffy_2010]

Have you tried 45 degree spacers? That's what I have always used

 

[2015 Silver GT]

Cool beans. As long as the engine doesn't go into limp mode or anything like that thinking something is wrong I am OK with a cel. Thanks

COT still needs to be addressed with a tune. I would not suggest going down this path until you've gotten a tune for this setup.

 

[RushGotti]

Nope, I've been doing that this whole week lol.

Takes about 2 days for the CEL to pop up, Other than that, Nothing.

Edit: But I did it because my tuner is on its way, I just didn't think it'd take this long to get it (Tomorrow)

When I purchased it 2 weeks ago lol.

 

[FivePointToTheOh]

You COULD run it. I wouldn't advise it, that's a lot of flow and breathing room that your engine isn't used too, could cause it to run quite differently. They recommend a tune with Longtubes for a reason. In my opinion I'd get a tune before installing, but if not, very shortly there after.

 

[Major League Infidel]

On my 12 I ran the car with LTs and no tune for about 2 weeks. I datalogged the car with the stock tune and it only ran a little richer. Not enough to do anything to hurt the car. I still recommend getting a tune as soon as possible though to optimize the car and get the most out of your new purchase.

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