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New tune?

Discussion in 'FAST Support Forum' started by meyste63, Jul 16, 2017.

  1. meyste63

    meyste63 New Member

    Mar 16, 2014
    So I have a first gen. EZ system on an LS2. It's port injected dual air only throttle bodies. My old headers were 3 piece slip fit and leaked. Obviously that caused O2 reading problems. I have installed new one piece headers. My question is, should I start a new tune? Off the top of my head, I think I should. Just wanting others opinions. Thanks in advance.

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