{"product_id":"do88-transmission-cooler-bmw-b58-amp-toyota-supra","title":"do88 Transmission Cooler – BMW B58\/S58 \u0026 Toyota Supra","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe ZF 8HP automatic transmission is used across the B58-powered M340i, Z4 M40i, and GR Supra, as well as the S58-powered G8X M2\/M3\/M4 — and in every case, heat is a real limiting factor once the car has been tuned or sees regular track\/drag strip use. The factory external liquid-to-air transmission cooler can be overwhelmed once heat output climbs beyond stock levels. The do88 Transmission Cooler is a drop-in, higher-capacity replacement designed to keep transmission temperatures in check under sustained hard use.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore volume:\u003c\/strong\u003e 184% larger core volume than the factory B58 cooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling surface:\u003c\/strong\u003e 176% more active cooling area than the factory unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube design:\u003c\/strong\u003e Upgraded \"harmonica\" tubes with internal channels for optimal oil flow and maximum surface contact\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid pressure:\u003c\/strong\u003e Maintains similar fluid pressures to the factory system despite the larger core, so no ECU\/TCU recalibration is needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e OEM-style \"Quick Connect\" inlet\/outlet connections for a true drop-in fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e The B58 version is designed to pair with the do88 Front Intercooler Radiator (WC-400); the S58 version pairs with the S58 Front Intercooler Radiator (WC-430). Both install independently as well.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x do88 transmission cooler (platform-specific)\u003c\/li\u003e\n\u003cli\u003eQuick Connect fittings and mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in replacement for the factory transmission cooler — no modifications required.\u003c\/li\u003e\n\u003cli\u003eOEM-style Quick Connect fittings mean no special tools or line modifications are needed for the fluid connections.\u003c\/li\u003e\n\u003cli\u003eApplicable only to automatic-transmission cars (ZF 8HP) — both the B58 and S58 platforms in these applications are automatic-only in current form.\u003c\/li\u003e\n\u003cli\u003eCommonly paired with the matching \u003ca href=\"https:\/\/x58cartel.com\/products\/do88-front-intercooler-radiator-heat-exchanger-bmw-b58-s58-amp-toyota-supra\"\u003edo88 Front Intercooler Radiator\u003c\/a\u003e for a complete cooling system upgrade, but works independently with the factory heat exchanger as well.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/OC-190.pdf?v=1785358284\" target=\"_blank\"\u003eOC-190 installation instructions (B58 G-Series \/ Supra) »\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/OC-210.pdf?v=1785358285\" target=\"_blank\"\u003eOC-210 installation instructions (S58 G8X) »\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOC-190 (B58 G-Series and Supra)\u003c\/li\u003e\n\u003cli\u003eOC-210 (S58 G8X)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; text-align: left;\" cellspacing=\"0\" cellpadding=\"6\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eTransmission\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM340i \/ M340i xDrive\u003c\/td\u003e\n\u003ctd\u003eG20 \/ G21\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2018+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i (xDrive)\u003c\/td\u003e\n\u003ctd\u003eG22 \/ G23 \/ G26\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM240i (xDrive)\u003c\/td\u003e\n\u003ctd\u003eG42\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4 M40i\u003c\/td\u003e\n\u003ctd\u003eG29\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2019–2026\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 \/ M3 Competition\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 \/ M4 Competition\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003eG87\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Supra 3.0 \/ 3.0 Premium\u003c\/td\u003e\n\u003ctd\u003eA90 \/ A91\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2020–2026\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (auto only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"do88","offers":[{"title":"B58 G-Series and Supra, ZF 8HP","offer_id":53704129610035,"sku":"OC-190","price":628.03,"currency_code":"USD","in_stock":true},{"title":"S58 G8X M2 M3 M4, ZF 8HP","offer_id":53704132297011,"sku":"OC-210","price":684.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/OC-190_2.webp?v=1785186717","url":"https:\/\/x58cartel.com\/products\/do88-transmission-cooler-bmw-b58-amp-toyota-supra","provider":"x58cartel","version":"1.0","type":"link"}