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Lab tested at ~30% more efficient than OEM cooler
Then the Eventuri intake was fitted and the same method applied
offset and brake clearance
The M2 Carbon Fiber roof is a full replacement panel
CSF B58 | B48 Charge Cooler Water Radiator - BMW M140i | M240i | 340i | 440i Finish:Silver Lab tested at ~30% moreThe CSF Charge Cooler Water Radiator AKA Heat Exchanger is the most technologically advanced on the market. The tuning potential for the charge cooled M1 240i, 1 2 3 420i and 1 2 3 425i is huge. However, once boost levels are increased the charge air temperature increases which is due to compressed air heating up. The stock cooling system works okay on a stock car but once boost levels are increased and more heat is introduced it begins to struggle.
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