AEM BMW Cold Air Intake The AEM BMW Cold Air intake system relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. Tuning the BMW inlet pipe length and diameter to match the BMW's engine's resonance helps move more air to the cylinders and this tuning allows AEM to deliver the maximum power gains throughout the entire RPM range. AEM also monitors BMW fuel trim correction factors and all OBDII sensors during R&D to eliminate leaning the engine out and/or throwing a check engine light.
Injen BMW Cold Air Intake Injen BMW Cold Air Intakes consist of the RD Series Race Division Intake System and the SP Intake System. The BMW RD series is a cold air intake system for the enthusiast craving mid-range power. The BMW SP Intakes Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio.
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