Overview Direct replacement for original assembly. Stop wasting time and money cobbling together that old air-box. Newly constructed air boxes reduce maintenance headaches, increase efficiency of the induction system and include vibration absorbing parts. Eliminate cracks and vibration fatigue repairs. Effective control and application of carburetor heat is a must. Damaged components, mis-repair and inferior seals can cause dangerous conditions and the inability to clear away ice. Improved components extend the service life of all components through the use of McFarlane vibration absorbing bearings, no more needle bearing failures! This unit has Transport Canada part design approval (TC-PDA Canada).