The smooth inner wall gives it a superb air intake capacity and a smoother flow. [Specifications]: ①[Maximum Height-Front & Rear & Center]: 6.5 in ②[Length]: 16 in ③[Width]: 7 in ④[Single Or Dual Plane Type]: Single Plane ⑤[Port Quantity]: 6 ⑥[Material]: Plastic ⑦[Color]: Black ⑧[Gasket Included]: Yes.
