While I don't have the MACs, I really like my FMS pulleys. They installed easily, and I felt a noticable difference in my car's "get up and go"...
;-)
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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...
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