Banks Ram-Air Superiority. Banks intake improvements take advantage of the natural supercharging effect ram-air provides. (If you've ever stuck your hand out the window at 60-mph and felt the force working against it, you know what ram-air is.) Banks behind-the-grille Super-Scoop is 156 percent larger than the stock piece to harness more ram-air, separate out debris and rainwater and send the ram-air through a 4 inch duct to the high-flow Banks Ram-Air filter. That packs cool dense ram-air into your engine, increasing power and efficiency. The Banks Ram-Air Intake System with Super-Scoop air inlet and High-Flow Filter delivers cool dense air to cylinders. Includes a 5-year Limited Warranty. Ram-Air Cold-Air Intake System, Oiled Filter for use with 1996-2000 GM 454 Motorhome, P30 Key Features Extensively tested and validated Enclosed housing keeps out hot, power-robbing engine air Inhales cooler outside air for more power and MPG Giant filter maximizes high-flow filtration Helps engine run cooler Accommodates engine movement Prevents component damage Extends service life and requires fewer cleanings 5-year Limited Warranty Complete air intake system Includes Banks' mammoth Super-Scoop air inlet and ducting Includes service kit for use every 30,000-50,000 miles OILED Air Filter Element 50 State Compliant CARB E.O. D-161-81