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SD hood, air dam, as of Jan 10th 2006, 3.25 pulley, SS ic, 1.84 rockers, 3" DP, t stat, plugs, PCM 1.0 and "shocked look on face"
Yeah its teflon. Supposedly not a big deal to come off, probably just helps the rotors last longer. Maybe helps with heat. Wearing off might affect the boost pressure negatively, since the rotors wouldn't be as tight if much of the teflon is gone.
People injecting nitrous or alcohol tend to lose the coating fast.