Competes in 1992 Porsche 964 SuperCup.
Koster Racing is a amateur / club-level racing team based in Canton by John Koster. Koster Racing fields Porsche 964 SuperCup. The team's driver is John Koster. Koster Racing is listed on Race Team Wiki, the world's comprehensive racing team index cataloging over 2,700 teams across 125 series in 49 countries.
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