Need Tune after Headers?

[NixXR462]

Before I get the "search" replies. I did with no luck. I've never had luck with those forum search engines. My question(s) is after installing a set of long tube headers and catless mids will i get a CEL? Will a tune be necessary right after install? If i get a CEL light will it be ok to drive afterwards or will it go into "limp mode." May be a dumb questions sorry. I do plan on getting a tune afterwards but it may be a few weeks if it want hurt the car. I don't drive it everyday anyways. I just know on my old truck after i installed longtubes i got a CEL but it ran fine still. I did eventually get the o2 sim though.

[Poolshark1321]

Yes your going to throw a CEL...

You will be fine running with it on for a short period of time. You could probably go a few months without any problems and you may never have problems. But its still best not to let it go too long. Also I dont know if I would drive it real hard in that time period before its tuned. Probably doesnt matter and everything would be fine, but its better to be safe then sorry.

[Robofuzz]

Yeah - without cats you're definitely going to get the CEL. Also, you may have a lot of popping from your exhaust. You need to get a tune to turn off the checks for the cats and fix the tune for the more efficient exhaust flow.

And by the way - on this site, you can ask questions without people jumping on you about the search function.

[NixXR462]

Thanks, I'm just going to be driving about 60 miles from where I install the headers then back home park it and the next weekend drive another 60 or so to get it dynoed and tuned.

[txgtofan]

Thanks, I'm just going to be driving about 60 miles from where I install the headers then back home park it and the next weekend drive another 60 or so to get it dynoed and tuned.

In all probability; Your engine is going to be running lean please take it easy!

[Poolshark1321]

In all probability; Your engine is going to be running lean please take it easy!

Yep, thats why I wouldnt drive it hard or get on it at all during that time if you can help it. Dont want to risk something going wrong...

[Lspwr]

As already stated, you can certainly drive it. You'll without a doubt get the cel. A hand held can tune the rear O2's out. Or just wait till that dyno tune and have the tuner tune them out then.