Reviewed By Frank Y (Speedwell, VA) Reviewed for a 2001 GMC Yukon —5/25/2014 8:50 AM
Agreat addon to my Denali. It did increase power, and fuel mileage. I love the sound also. Highly recommend this product. I want to praise K&N for customer service. During installation, I could not mount the MAS sensor to the adapter because of a manufacturing defect. The threads were missing in the adapter. After contacting K&N, they shipped a new adapter to me (from Riverside CA,to VA, in less than 24 hours. Now thats service!!!