The 99 Cobra fix consists of a new upper and lower intake, a new computer. I think they put 98 computers in them for the fix. There are somee 99 Cobra owners that are members of this board that would be able to tell you more. But I think that was all that was involved.
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My Burnout ;-)
3.73 gears
Mac power chamber
2 chamber Flows
Mac cold air induction