I don't have any data on the throttle body, but I couldn't be happier with the FMS pulleys that are on my 98 GT. They perform great and look good in blue...;-)
You can never be 100% sure about who manufactures what anymore, but the box had Ford Motorsport and its logos all over the box....
Hope this helps,
Hammer
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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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