98 camaro long tube headers?
Without cats, you're doing to get a SES light. To remedy this, you'll need a tune. I suggest you save up and do headers at one time along with many other mods (such as !EGR and !AIR) and get all the codes custom-tuned out of the computer.
Superchips, Hypertech, etc are all a waste of money - you need a CUSTOM dyno tune to yield maximum performance.
If your going to get a tune though, get a REAL tune from someone reputable.
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