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The do88 auxiliary oil cooler is a specific accessory for 2000–2006 BMW M3 (E46) when used with the do88 radiator WC-310. It supplies an auxiliary cooling path intended to work alongside that radiator upgrade, providing additional oil cooling capacity matched to the E46 M3 installation. This auxiliary cooler is designed for the stated E46 M3 years in combination with the referenced radiator.
do88 00-06 BMW M3 (E46) w/do88 Radiator WC-310 Auxiliary Oil Cooler
