This Momentum GT intake system was designed around the largest filter possible to allow maximum performance and filtration. This cone filter has a large (6-3/4" x 4-3/4") oval flange and is 9" tall with an inverted top. The Pro 5R performance air filter features 5-layers of progressively finer mesh cotton gauze oiled media and is constructed with 100% polyurethane frame for long life and multiple cleaning cycles. A custom CAD designed roto-molded housing made from heat soak resistant material eliminates the use of multiple components and ensures the coolest air intake charge available. 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. A urethane plug is also included if you wish to block off the auxiliary air inlet. This system uses a high quality plastic CAD designed, dyno-tuned, roto-molded intake tube to achieve maximum power gains whi le maintaining a perfect fit.