PMAS takes the guessing game out of the tuning and MAF sensor combinations by making a complete ready to run cold air intake and MAF combo that has proven itself on the street and at the track. PMAS Velocity intakes fits as a direct replacement for the OEM airbox and intake tube assembly. PMAS uses their patented mass air flow sensing system for smooth stable idle flow for stock drivability. Massive intake tubes are used with no MAF resolution loss. PMAS HPX mass airflow sensors are manufactured and calibrated to the most demanding standards in the industry. Limited lifetime warranty!