After some searching...
Abbot ERA install instructions can be found at:
http://www.lx.net/jlynch/abbott.html
Thanks to Joe Lynch and Corral.net for the tip off...
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98 GT
Dyno-Max cat-back exhaust, 3.73 gears, Steeda shifter, Ford Motorsport Underdrive pullies, 87mm MAF and Roush cold air kit...