04-14 TRX 450R/ER Aftermarket high flow lid

This is a direct drop on and go replacement to the OEM lid since it is a direct fit aftermarket lid. 

A simple modification to the airbox to increase the airflow similar to having no lid at all, while providing added protection to the air filter.  I use outer wears water repelling mesh and a rubber gasket for pre-filter protection and sealing to the lid . They are 3d printed from quality ASA plastic and tough rubbery TPU to hold up to the harsh environment of the off-road world.

****Proper jetting will be required for any modification to the air/fuel system****