Applicable models: general models Product name: turbo whistle, product net weight: S: 0.070 KG, M: 0.080 KG, L: 0.107KG, XL: 0.135KG, product material: aluminum alloy This car accessory is easy to install and does not require any installation skills. List of pieces : 1 * turbo whistle L1 * wrench 1 * thimble This type of exhaust valve is suitable for most vehicles and can be used for cars and motorcycles. It is an ideal accessory for modified vehicles. The sound size is different depending on the specifications. The larger the number, the louder the sound. It is best to confirm the inner diameter of the exhaust port before purchasing. If the diameter of the whistle plus 1cm is greater than or equal to the inner diameter of the exhaust port, it will not be installed.