Motor Saver Air Filter 2.5 Revo Maxx 60° High Airflow Air Filter for the TraxxasRevo 2.5R / Tmaxx 2.5 Air FilterGoes over the Carb and collects dirt and other particlesPlastic, rubber and foam construction with fine mesh screenProtects your engine from harmful particalsIncluding (1) Air Filter, Zip Tie, and Instructions