{"product_id":"kyostar-heat-exchanger-auxiliary-radiator-kit-for-bmw-g29-z4-g42-b48-b58","title":"KYOSTAR Heat Exchanger \u0026 Auxiliary Radiator Kit for BMW G29 Z4 G42 B48 B58","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR Intercooler Heat Exchanger \u0026amp; Auxiliary Radiator Cooling Kit for BMW G-Series G29 Z4 G42 B48 B58\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nUpgrade your BMW's cooling system with the KYOSTAR Intercooler Heat Exchanger \u0026amp; Auxiliary Radiator Cooling Kit. This combined package includes a main intercooler heat exchanger and a pair of auxiliary radiators, bringing together two complementary cooling-system components in one convenient kit.\n\u003c\/p\u003e\n\n\u003cp\u003e\nDeveloped for compatible BMW G-Series applications, this kit features a black main heat exchanger and two black auxiliary radiators. The components are offered together as a complete sales package rather than separate products.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied product information identifies applications across BMW B48 and B58 platforms. Vehicle-specific compatibility must be verified before ordering, particularly where factory cooling-system configurations differ between engine variants and model years.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eCombined main heat exchanger and auxiliary radiator cooling kit.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eIncludes one main intercooler heat exchanger.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eIncludes one pair of auxiliary radiators.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eThree radiator components supplied in one package.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDesigned for compatible BMW G-Series cooling-system applications.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eListed for selected BMW G29 Z4 applications.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBMW G42 applications are referenced in both source product listings.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBlack radiator components as shown in the supplied product images.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eFinned radiator construction for heat exchange.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePerformance-oriented cooling-system replacement and upgrade configuration.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eMain and auxiliary cooling components available together in one kit.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW Z4 G29:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e2018+ BMW G29 Z4 20i — verify cooling-system configuration.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e2018+ BMW G29 Z4 30i — verify cooling-system configuration.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e2018+ BMW G29 Z4 M40i — verify cooling-system configuration.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW 2-Series G42:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e2022+ BMW G42 2-Series — exact engine and cooling-system compatibility must be confirmed.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAdditional Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\nThe individual components are also listed for other BMW G-Series models and Toyota Supra applications. However, these additional applications are not automatically confirmed for the combined kit.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPlease contact KYOSTAR to verify complete kit compatibility with your specific vehicle before ordering.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003eImportant Fitment Note:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eThis listing includes one main heat exchanger and one pair of auxiliary radiators.\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBoth source products reference BMW G29 Z4 and G42 applications, but exact compatibility must be confirmed for each vehicle configuration.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDo not assume that fitment for an individual radiator automatically confirms compatibility with the complete kit.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePlease verify your vehicle's model, chassis, production year, engine code, and factory cooling-system layout.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eVehicles equipped with aftermarket cooling components or modified front-end assemblies may require additional verification.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eThe supplied information does not specify core dimensions, coolant capacity, pressure ratings, or measured temperature reductions.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eCoolant, hoses, and installation hardware are not confirmed as included.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nThis KYOSTAR cooling kit combines the NA-HE-1005-SM-BK main heat exchanger and NA-HE-1006-SM-BK auxiliary radiator set into one package.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe main heat exchanger is individually listed for selected BMW G-Series applications, including G29 Z4, G42 2-Series, and G20\/G21 3-Series models.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe auxiliary radiator set is individually listed for selected BMW G29 Z4, G42 2-Series, and Toyota Supra A90\/A91 applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eThe complete kit's compatibility must be verified as a combination.\u003c\/strong\u003e Individual product fitment does not automatically establish that both cooling components can be installed together on every listed vehicle.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore ordering, compare the factory main heat exchanger and auxiliary radiator arrangement with the supplied product photos. Verify the radiator mounting points, coolant connections, hose routing, front-end clearance, and surrounding components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe source information does not provide detailed core measurements, coolant volume, pressure ratings, material specifications, flow-test results, or measured cooling improvements.\n\u003c\/p\u003e\n\n\u003cp\u003e\nNo specific temperature reduction, horsepower increase, or cooling-capacity improvement is claimed without supporting test data.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e After installation, the cooling system should be filled, bled, and inspected according to the applicable vehicle service procedure. All coolant connections, mounting points, and surrounding clearances should be checked.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKYOSTAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eHeat Exchanger \u0026amp; Auxiliary Radiator Cooling Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMain Heat Exchanger SKU\u003c\/td\u003e\n\u003ctd\u003eNA-HE-1005-SM-BK\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Radiator SKU\u003c\/td\u003e\n\u003ctd\u003eNA-HE-1006-SM-BK\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eSales Configuration\u003c\/td\u003e\n\u003ctd\u003eCombined Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMain Heat Exchanger Quantity\u003c\/td\u003e\n\u003ctd\u003e1 Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Radiator Quantity\u003c\/td\u003e\n\u003ctd\u003e1 Pair \/ 2 Units\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eTotal Radiator Components\u003c\/td\u003e\n\u003ctd\u003e3 Units\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eVehicle Brand\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePrimary Chassis References\u003c\/td\u003e\n\u003ctd\u003eG29 \/ G42\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eEngine Platform References\u003c\/td\u003e\n\u003ctd\u003eB48 \/ B58\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCooling System Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003e1 Main Heat Exchanger + 1 Pair of Auxiliary Radiators\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eProfessional Installation Recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is included in this cooling kit?\u003c\/strong\u003e\u003cbr\u003e\nA: The kit includes one main heat exchanger and one pair of auxiliary radiators, for a total of three radiator components.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are both products sold together?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. This listing combines the main heat exchanger and auxiliary radiator set into one sales package.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the component SKUs?\u003c\/strong\u003e\u003cbr\u003e\nA: The main heat exchanger is NA-HE-1005-SM-BK, and the auxiliary radiator set is NA-HE-1006-SM-BK.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit a BMW G29 Z4?\u003c\/strong\u003e\u003cbr\u003e\nA: Both source products reference G29 Z4 applications. Please verify the exact engine variant and factory cooling-system configuration before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit a BMW G42 2-Series?\u003c\/strong\u003e\u003cbr\u003e\nA: Both products reference G42 applications, but exact engine and model compatibility must be confirmed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit a BMW G20 330i?\u003c\/strong\u003e\u003cbr\u003e\nA: The main heat exchanger lists G20 330i applications, but complete kit compatibility is not established by the auxiliary radiator's supplied fitment information.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit a Toyota Supra A90 or A91?\u003c\/strong\u003e\u003cbr\u003e\nA: The auxiliary radiator set lists Toyota Supra applications. The main heat exchanger's supplied fitment information does not explicitly confirm Supra compatibility, so complete kit fitment requires verification.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does the kit include two auxiliary radiators?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The auxiliary radiator set contains two radiator units as shown in the supplied product image.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What color are the radiators?\u003c\/strong\u003e\u003cbr\u003e\nA: The supplied product images show black radiator components.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit improve cooling performance?\u003c\/strong\u003e\u003cbr\u003e\nA: The kit is intended as a cooling-system upgrade. No measured temperature reduction or cooling-capacity improvement is supplied, so no specific numerical performance gain is claimed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are coolant hoses and mounting hardware included?\u003c\/strong\u003e\u003cbr\u003e\nA: The supplied information does not confirm the complete hose or hardware package. Please verify the exact contents before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is coolant included?\u003c\/strong\u003e\u003cbr\u003e\nA: Coolant is not confirmed as part of the supplied package.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What should I verify before ordering?\u003c\/strong\u003e\u003cbr\u003e\nA: Confirm the vehicle model, chassis, engine, production year, factory radiator arrangement, coolant connections, mounting points, and available installation clearance.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Professional installation is recommended to ensure correct radiator mounting, coolant connections, system bleeding, and leak inspection.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWarranty \u0026amp; Shipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nPlease review the applicable KYOSTAR warranty terms before purchasing. Warranty coverage, duration, and exclusions are subject to the terms provided at the time of purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe main heat exchanger and auxiliary radiators should be inspected upon delivery for transportation damage, damaged cooling fins, bent mounting brackets, or missing components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPlease retain the original packaging and contact KYOSTAR customer support promptly if shipping damage or product-related concerns are identified.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore installation, verify that all three radiator components match the ordered kit and intended vehicle application. Installation should not proceed if fitment concerns or visible damage remain unresolved.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFor assistance with vehicle compatibility, package contents, installation questions, shipping arrangements, or after-sales support, please contact KYOSTAR customer service.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"KYOSTAR","offers":[{"title":"Ships from U.S. Warehouse","offer_id":54711670505745,"sku":"NA-HE-1005-SM-BK +NA-HE-1006-SM-BK-1","price":1188.0,"currency_code":"USD","in_stock":false},{"title":"Factory Direct Shipping","offer_id":54711670538513,"sku":"NA-HE-1005-SM-BK +NA-HE-1006-SM-BK-2","price":1288.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/7361\/5889\/files\/NA-HE-1006-SM-BK_NA-HE-1005-SM-BK_4.jpg?v=1789977714","url":"https:\/\/www.kyostars.com\/products\/kyostar-heat-exchanger-auxiliary-radiator-kit-for-bmw-g29-z4-g42-b48-b58","provider":"KYOSTAR PERFORMANCE","version":"1.0","type":"link"}