DUAL Super Tone LOUD Blast 139Db Universal Euro RED ROUND HORNS (Quantity 2) High Tone / Low Tone Twin Horn Kit with Bracket Pair Compact &ndash; Extremely LOUD for Car Bike Motorcycle Truck for Mitsubishi Eclipse GST GT RS Mirage Evo Evolution VIII IX X VR4 SL Diamante GSX Lancer EVO 3000GT Montero GST Evolution 8 9 10 Galant Outlander Mivec GT MR GSR VR MMC VVT Cedia Carisma Pajero 3A91 3B20 4A90 4A91 4B10 4B11 4B12 4G15 4G69 4N13 6B31 6G75 4G19 4G92 4G63T 6A12 6G72 6G74 Universal Fitment / Relay and 2 Mounting Brackets plus Instructional Installation Diagram Included Super Loud - Sound Output: 139DB - 530-680 HZ / 12V Power Source - No External Air Supply Needed Made of Steel and Powder coated in Red Color for a Long Lasting Finish Mounting Type: Single Screw - Terminal Contacts: Blade Type - Includes 2 Universal Mounting Brackets Diameter = 4.89 / 124mm (without mounting bracket), 5.31 / 135mm (with mounting brackets). Depth (Thickness) = 2.65 / 67mm. They can easily be tucked behind Most Vehicles Grills.