Powermaster products are made in the U.S., too. From what I've read, they are good people. Here is a Motor Trend article about a visit to their factory in West Chicago:
https://www.motortrend.com/features/...ance-facility/
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1966 Pontiac GTO (
restoration thread)
1998 BMW 328is (
track rat)
2023 Subaru Crosstrek Limited (
daily)
View my photos: Caught in the Wild