K&N 21 24 Ford F150 (3.5L V6) NextGen Cold Air Intake Capital Letter K Images Floral botanical alphabet. Vintage hand drawn monogram letter K. Letter The Letter K Worksheets Webtools Letter 'K' Tracing Worksheet. This K&N NextGen cold air intake system is engineered for your FORD F150 RAPTOR V6 2. 7 3. 5L F I. A high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow by 24. 6% (driver side) & 33. 25% (passenger side) to your engine and provides an increase of 27. 20 horsepower and 40. 29 torque with no tune required. This intake system is paired with a washable, reusable High Flow LIFETIME Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom designed NextGen air box helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 60 minutes.