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

[Zemedici]

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

:lol::lol:

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[Derek@Lethal]

Would you have a CEL with catted headers too?

Yes, there is certainly a chance that even with a catted setup you'd have a CEL illuminate. There is no harm, just the annoying light, when you do exhaust. The only way to guaranty no CEL is by doing a tune. Some people have got away with the anti-foulers for the O2's, but that's not always going to work on all cars.

But to answer your question, OP, no harm with an illuminated CEL from adding exhaust and not doing a tune.

 

[beefcake]

The kooks green catted run the least chance of not setting a light, but there is still a chance,

a custom tune would obviously benefit you, if your going to the trouble of swapping headers, the extra $$ for a tune would be well worth it,

let me know if we can help you out with a lund custom tune with an x4 or ngauge

beef
513-478-1965

 

[KilluminatiDre]

Yes, there is certainly a chance that even with a catted setup you'd have a CEL illuminate. There is no harm, just the annoying light, when you do exhaust. The only way to guaranty no CEL is by doing a tune. Some people have got away with the anti-foulers for the O2's, but that's not always going to work on all cars.

But to answer your question, OP, no harm with an illuminated CEL from adding exhaust and not doing a tune.

Thanks, one last question. If I have my tune set up for longtubes can I run stock headers on that tune temporarily until I install the longtubes?

 

[beefcake]

yes you can, the rear o2s will just be off

 

[Derek@Lethal]

Thanks, one last question. If I have my tune set up for longtubes can I run stock headers on that tune temporarily until I install the longtubes?

Yes you can, no issue in doing that at all.

 

[Guard5.0]

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

Nope, but I'll look into it when the 670 tune goes on, thanks for the info.

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