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You are going to have to get a tune...or just live with it. And as cheap as gas is right now....I would run the highest rating you have available. Here we have 93.
If you get a tune, look at StageFP. Bob is the best around. Also let him know the highest octane you will be running.
And in my opinion...I would leave the secondaries. That's what I did. There isn't a lot of power that comes from removing them, and you will also get more of a smell in your car.
At the least....install the headers and leave the secondaries. I have heard of some people doing this without a tune and not getting a CEL....but it's rare.
You will need to install the o2 sensors into your aftermarket headers anyway.
And without a tune to tie it all together, you are leaving at least 1/2 of your gains on the table.
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Everybody has a gameplan....until they get punched in the mouth.  |