Running Headers With Untuned Car?
Thread Starter
Staging Lane
Joined: Mar 2005
Posts: 77
Likes: 0
From: Pennsylvania
Running Headers With Untuned Car? Is it okay to run headers with an untuned car until i get it tuned which will be in about a month? I have high flow cats and lm exhaust.. will this hurt my cats or anything else? thanks..
It will be fine. I drove for 5 months after my header install before a tune. It might run a little rich and there's a chance the Check Engine Light will come on, but the car will drive just fine.
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Ive got LTs and no tune. As the others said, I run a bit rich but it drives just fine. I may be missing out on a couple horsepower though without the tune. Im just waiting for the cam to get the tune.
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i had LTs, catted y, hooker cat back, march u/d pulley installed with no tune for about 8 months now and i just put in a nice cam. still no tune. i kinda need to get on top of that now though 
longtubes and no tune since march. runs fine but i am dying for that tune everytime i run that quarter mile. hopefully my time will drop a few tenths once i get it. .
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Originally Posted by nokeman
Ive got LTs and no tune. As the others said, I run a bit rich but it drives just fine. I may be missing out on a couple horsepower though without the tune. Im just waiting for the cam to get the tune.
I have long tubes, off-road X pipe, and a couple bullet mufflers dumped...but I won't be getting a tune until I get that cam I have been longing for so much. Stupid tires set that back though
