A large clear sight window allows for filter inspection without removal of the air box. The roto-molded housing is made out of black cross-linked polyethylene and mounts directly into the factory location on the fender well to capture the coolest air available from the factory intake tract.Flow Optimized Tube:This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains while maintaining a perfect fit.