HELLA Supertone 12V High/Low Tone Twin Horn Kit with Perrin Bracket for 2015 Subaru WRX STI (Red) These Hella Supertones are built with durability in mind, housed in a rugged tough ABS shell, protected with a red grill for aesthetic appeal. These output an astounding 118DB of sound, more than enough to get you noticed when it matters the most! Power Consumption: 2 x 66W Frequency: 500Hz (high tone) & 300Hz (low tone) Perrin brackets included for 2015 Subaru WRX / STI