KYOSTAR Heat Exchanger & Auxiliary Radiator Kit for BMW G29 Z4 G42 B48 B58

KYOSTAR Intercooler Heat Exchanger & Auxiliary Radiator Cooling Kit for BMW G-Series G29 Z4 G42 B48 B58

Upgrade your BMW's cooling system with the KYOSTAR Intercooler Heat Exchanger & 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.

Developed 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.

The 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.

Features

• Combined main heat exchanger and auxiliary radiator cooling kit.

• Includes one main intercooler heat exchanger.

• Includes one pair of auxiliary radiators.

• Three radiator components supplied in one package.

• Designed for compatible BMW G-Series cooling-system applications.

• Listed for selected BMW G29 Z4 applications.

• BMW G42 applications are referenced in both source product listings.

• Black radiator components as shown in the supplied product images.

• Finned radiator construction for heat exchange.

• Performance-oriented cooling-system replacement and upgrade configuration.

• Main and auxiliary cooling components available together in one kit.

Fitment

BMW Z4 G29:

• 2018+ BMW G29 Z4 20i — verify cooling-system configuration.

• 2018+ BMW G29 Z4 30i — verify cooling-system configuration.

• 2018+ BMW G29 Z4 M40i — verify cooling-system configuration.

BMW 2-Series G42:

• 2022+ BMW G42 2-Series — exact engine and cooling-system compatibility must be confirmed.

Additional Applications:

The 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.

Please contact KYOSTAR to verify complete kit compatibility with your specific vehicle before ordering.

Important Fitment Note:

• This listing includes one main heat exchanger and one pair of auxiliary radiators.

• Both source products reference BMW G29 Z4 and G42 applications, but exact compatibility must be confirmed for each vehicle configuration.

• Do not assume that fitment for an individual radiator automatically confirms compatibility with the complete kit.

• Please verify your vehicle's model, chassis, production year, engine code, and factory cooling-system layout.

• Vehicles equipped with aftermarket cooling components or modified front-end assemblies may require additional verification.

• The supplied information does not specify core dimensions, coolant capacity, pressure ratings, or measured temperature reductions.

• Coolant, hoses, and installation hardware are not confirmed as included.

Fitment Note:

This 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.

The main heat exchanger is individually listed for selected BMW G-Series applications, including G29 Z4, G42 2-Series, and G20/G21 3-Series models.

The auxiliary radiator set is individually listed for selected BMW G29 Z4, G42 2-Series, and Toyota Supra A90/A91 applications.

The complete kit's compatibility must be verified as a combination. Individual product fitment does not automatically establish that both cooling components can be installed together on every listed vehicle.

Before 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.

The source information does not provide detailed core measurements, coolant volume, pressure ratings, material specifications, flow-test results, or measured cooling improvements.

No specific temperature reduction, horsepower increase, or cooling-capacity improvement is claimed without supporting test data.

Professional installation is recommended. 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.

Product Details

FAQ

Q: What is included in this cooling kit?
A: The kit includes one main heat exchanger and one pair of auxiliary radiators, for a total of three radiator components.

Q: Are both products sold together?
A: Yes. This listing combines the main heat exchanger and auxiliary radiator set into one sales package.

Q: What are the component SKUs?
A: The main heat exchanger is NA-HE-1005-SM-BK, and the auxiliary radiator set is NA-HE-1006-SM-BK.

Q: Will this kit fit a BMW G29 Z4?
A: Both source products reference G29 Z4 applications. Please verify the exact engine variant and factory cooling-system configuration before ordering.

Q: Will this kit fit a BMW G42 2-Series?
A: Both products reference G42 applications, but exact engine and model compatibility must be confirmed.

Q: Will this kit fit a BMW G20 330i?
A: The main heat exchanger lists G20 330i applications, but complete kit compatibility is not established by the auxiliary radiator's supplied fitment information.

Q: Will this kit fit a Toyota Supra A90 or A91?
A: 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.

Q: Does the kit include two auxiliary radiators?
A: Yes. The auxiliary radiator set contains two radiator units as shown in the supplied product image.

Q: What color are the radiators?
A: The supplied product images show black radiator components.

Q: Does this kit improve cooling performance?
A: 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.

Q: Are coolant hoses and mounting hardware included?
A: The supplied information does not confirm the complete hose or hardware package. Please verify the exact contents before ordering.

Q: Is coolant included?
A: Coolant is not confirmed as part of the supplied package.

Q: What should I verify before ordering?
A: Confirm the vehicle model, chassis, engine, production year, factory radiator arrangement, coolant connections, mounting points, and available installation clearance.

Q: Is professional installation recommended?
A: Yes. Professional installation is recommended to ensure correct radiator mounting, coolant connections, system bleeding, and leak inspection.

Warranty & Shipping

Please review the applicable KYOSTAR warranty terms before purchasing. Warranty coverage, duration, and exclusions are subject to the terms provided at the time of purchase.

The main heat exchanger and auxiliary radiators should be inspected upon delivery for transportation damage, damaged cooling fins, bent mounting brackets, or missing components.

Please retain the original packaging and contact KYOSTAR customer support promptly if shipping damage or product-related concerns are identified.

Before 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.

For assistance with vehicle compatibility, package contents, installation questions, shipping arrangements, or after-sales support, please contact KYOSTAR customer service.