$67
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Bosch Upstream Oxygen (O2) Sensor for 1986-1991 Ferrari Testarossa 4.9L H12. This Bosch oxygen sensor is listed for the upstream position on 1991, 1990, 1989, 1988, 1987, and 1986 Ferrari Testarossa 4.9L H12 models. A solid choice for a tune up or performance upgrade.