Made of high-quality materials for maximum durability and reliability. Seamless fit, perfect fit for your car. Easy to install, no complicated tools required, easy to use. Professional workmanship, exquisite , novel and unique style Naturally aspirated electronic turbo pressure relief valve Turbine electronic pressure relief valve simulation sound electronic turbo Are you jealous of the awesome sound of a pressure relief valve installed on a turbo car Are you worried that you can't install a pressure relief valve on a naturally aspirated car Then we also want to have such a magical device, what should we do Installation : Connect the positive and negative poles to the power supply, Install the switch under the pedal (there is a bracket to fix it, which can be adjusted so that you can make a sound by stepping on the accelerator) Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Bracket: random color , don't accept the specified color Colour:Red Material:ABS Package Contents: 1 x Universal Loud Horn Electronic Turbo Only the above package content, other products are not included. Note: Light reflection 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.