Ford Mustang Forum - View Single Post - Is it possible to run long tube headers without a new tune?
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post #3 of (permalink) Old 06-03-2012 Thread Starter
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cpembach1's Avatar
Joined: Feb 2012
Location: Fairview
Posts: 416
I am prepared to order a custom tune soon but will it be okay to drive for a week or two? I do not want another #8 failure from the engine running too lean. Ha
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