Great add on for your new intake purchase! The extra power you need when you need it: on the ramp acceleration, on demand passing, towing, through the hills or wherever. The Granatelli Motor Sports performance mass airflow sensors for the Hummer H2 will help reduce engine load and improve efficiency. This occurs by providing quicker and more accurate calibration to changes in engine intake airflow, fuel and spark timing. In addition, the smooth design of our sensorís inlet tube improves airflow capacity over OEM equipment by an industry leading 47%. The added performance is chassis dyno proven from 2000 rpm to the red line. Most importantly, the performance can be felt where it counts, in the seat of your pants. Granatelli Motor Sports performance mass airflow sensors are ideal for adding extra performance with none of the hassles. All you need are basic hand tools and about 10 minutes of your time. Just follow the included step-by-step instructions and youíll be enjoying an extra 10-23 rear wheel horsepower in no time. Now thatís performance, quick and easy! FITS 2003-2006 HUMMER H2 & SUT.