Description
RACING LAB COOLING
Enlarged all-aluminium auxiliary radiator for the B58
An enlarged all-aluminium auxiliary radiator that uses the factory mounting position and coolant connections on supported B58-powered GR Supra and BMW G-Series models. Designed to complement the front heat exchanger during repeated high-load driving.
~30%
Stated capacity increase
Aluminium
Core construction
Bolt-on
OEM mounts
Key features
✓Larger cooling core
Enlarged high-efficiency core compared with the original auxiliary radiator.
✓All-aluminium construction
Durable structure designed for effective heat dissipation.
✓Factory-location fitment
Direct-replacement installation at the original mounting points.
✓High-load applications
Designed for modified street cars and repeated circuit driving.
Design & construction
The upgraded all-aluminium core offers an approximately 30% stated increase in cooling capacity compared with the factory auxiliary radiator. The factory-position design complements a larger front heat exchanger and offers an integrated path for improving the B58 cooling package.
Fitment & installation
Fit to the compatible original radiator mountings and coolant connections. Refill and bleed the relevant cooling circuit and inspect for leaks after installation.
What's included
- 1 × enlarged all-aluminium auxiliary radiator
Vehicle fitment
Toyota
GR Supra A90 / A91 B58, 2020+
BMW
Supported G-Series B58: G20, G22, G30 and G42
Technical specifications
Core
Enlarged high-efficiency aluminium
Stated improvement
Approximately 30% greater cooling capacity than OEM
Mounting
Original factory locations
Application
B58 engine cooling circuit
Track-testing context
Sydney Motorsport Park testing of Racing Lab's complete cooling package recorded 117.0°C peak oil temperature versus 126.8°C for the factory setup at approximately 28°C ambient. The 9.8°C result represents the combined package, not an isolated radiator test.
Warranty
All Racing Lab performance parts are covered by a 1-year limited warranty against manufacturing defects and workmanship issues.
Every component is rigorously inspected to ensure quality and reliability, so you can upgrade your vehicle with confidence. If any issues arise, our support team is ready to assist with fast and hassle-free warranty claims.
Return Policies
We accept returns under the following strict conditions:
Restocking Fee: A 20% restocking fee (deducted from the product purchase price) applies to all returned items.
Item Condition: Returned items must show no signs of use, installation, or wear.
Free Shipping
Enjoy fast & free tracked shipping nationwide.
Pro Installation
Want a hassle-free installation? Book or enquire now.
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Why Buy From Racing Lab
Need help confirming fitment? Contact our Sydney team before ordering.
