New E46 M3 High-Performance Aluminum Radiator
Ditch your failure-prone plastic end tanks and increase cooling capacity by 25%�all without modifying your core support or accompanying shrouds. The CSFxTurner Performance Triple-Pass Radiator is the best cooling system upgrade for your S54-equipped BMW! The E46 M3 is a masterclass in German engineering. Harboring six independent throttle bodies, infinitely variable dual-VANOS, and an 8,000 RPM redline, the S54 is practically a racing engine for the road. Unfortunately, the engine's motorsport pedigree didn't quite make it to the cooling system. The OEM radiator, while superior to its non-M counterpart, struggles to keep coolant temperature in check under sustained high-RPM conditions. Heat soak, elevated operating temperatures, and component fatigue are all too familiar to M3 owners who track their S54 regularly.
increase cooling capacity by 25%
For Your E46 M3
10X Entries For Our Spin To Win Sweepstakes!
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Back Ordered
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Ships on Dec 2, 2026
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Back Ordered
Gains of up to 10hp on a stock M3!
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Ships on Aug 7, 2026