This bundle includes the custom PFM Nylon air filter adapter, Choke hold down and an angled 3.5" x 4" Air filter.
The air filter will fit and was designed for the Predator 420cc with absolutely Zero modifications. Simply remove the stock air box and bolt your new adapter and air filter right on.
*Please Note: The air filter adapter will NOT fit a duromax 420cc without modification to carburetor supports