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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
With modern ECU optimization, pushing powerful engines to their limits, there's a risk under certain conditions that the vehicle will receive insufficiently cooled air, which affects engine efficiency and ultimately leads to a loss of power.
That's why Forge is proud to introduce the PolarCooler, the first auxiliary cooling system for the BMW B58 engine in the A90 Supra. After extensive road and dyno testing with three different water core types and various fin configurations, we are pleased to present the ultimate front-mounted water cooling solution.
If you're an enthusiast who wants to push your A90 to the limit, this intercooler is a must-have. With a 177% increase in volume, owners in warm climates will appreciate the development of this product, which translates into safer intake temperatures for an extended period. This means that on the track, the standard ECU takes longer to retard ignition timing, which causes a loss of power. With the Forge PolarCooler, you get more power for longer, providing peace of mind during track sessions.
Color: Silver
Dimensions:
OEM: 500 mm x 615 mm x 27 mm (8.3L)
Forge Polarcooler: 480 mm x 600 mm x 80 mm (23L)
Compatible vehicles:
BMW Z4
Toyota Supra Mk5 A90










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
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We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.