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 Subaru Impreza 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 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.