CSF BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator - Single Radiator - 8321
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100% All-Aluminum construction ensures the best performance and durability. The integrated mounting frame is much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and corrosion resistance. CSF auxiliary radiators offer even more durability with the integrated bolt on rock guards to keep the coolers safe. You've no doubt heard horror stories about OEM coolers getting punctured and spilling fluids all over the road or track. Now you can feel more confident that your cooling system is safer from road debris.
The new CSF Auxiliary Radiators are a great addition to the popular F87 (N55) & F3X/F2X Cooling Suites. As more and more owners keep pushing the limits of their M2s and Gen 1 B58s, CSF is here to keep them cool.
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It is listed for: 2016-2018 BMW M2. Pick your vehicle on this page to check your exact year and trim.
Yes. Drain the old coolant, fill the new radiator with the coolant type your car calls for, then bleed the air out of the system.
Direct-fit radiators keep the stock fans and hoses; some need the included brackets or adapters. The maker's guide covers which.
Keep the stock thermostat unless the maker says otherwise. The radiator improves cooling; the thermostat sets when the engine opens to it.
On a tuned, towing or track car a thicker core keeps temperatures steady under long loads. On a stock daily driver the stock radiator is usually enough.
A thermostatic sandwich plate lets the oil warm up quickly in cold weather; many oil cooler kits include one.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.