Features 1- Finely crafted from aluminum alloy and CNC machine cut for precision, it is of high quality and solid construction for a long service time. 2-The rear bumper diffuser allows air to travel through the rear bumper to increase vehicle aerodynamics, which reduces drag and increase speed for the ultimate car racing. It is actually a diffuser that is wind tunnel designed and tested, you could increase rear down force with a rear diffuser. 3-With light weight design, It has a similar effect as having a rear spoiler, so you can improve fuel economy. 4-It is suitable for most vehicles such as for Honda, Mitsubishi, Proton, Perodua, Mazda, Nissan, etc. specification Material: Aluminum Alloy Color: Black Total Size(L x W): 390 * 103mm Hole Size:84mm 74mm 84mm Fit For: For most vehicles Package Contents: 2 * diversion diffusion panels 1 pack of screws Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.