aFe Power Stage 2 Cold Air Intake System (54-31662) boosts airflow and power for 2008–2012 BMW M3 (E9X) with V8 4.0L engine. This system delivers up to 12 additional horsepower and 9 lb-ft of torque, outperforming the stock intake by 41 percent. It uses the factory air box to help shield intake components from underhood heat and includes a dyno-tuned molded plastic intake tube and a reusable Pro 5R conical air filter designed for maximum flow and longevity. Installation requires no cutting or drilling and includes all necessary hardware.
Key Features :
Adds up to 12 horsepower and 9 lb-ft torque
Out-flows factory intake by 41 percent
Uses factory air box to reduce heat soak
Washable and reusable Pro 5R air filter
Dyno-tuned molded plastic intake tube
Direct bolt-on install with no cutting or drilling
Includes all required mounting hardware
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