For Jeep Grand Cherokee SRT8 3.5" Stainless Steel Pipe+Filter Heat Shield Cold Air Intake System - WK HEMI Made of high quality stainless steel material for strength and durability Lightweight high air flow racing performance spec. design Helps engine to draw in more and colder air resulting in better throttle response and higher explosive horsepower output Improves up to 95% filtration efficiency Increases 5 to 10 horsepower, 6 to 8 precent of torque, and improve the gas mileage