massive sound designs........
watch this

THIS ONE IS HORN SUB
[ame="http://www.youtube.com/watch?v=nDZ-WcUiEUE"]YouTube - JIMMY SUB HORN[/ame]

http://www.youtube.com/watch#!v=6cGI...eature=related


http://www.youtube.com/watch#!v=lTz5...eature=related


PRINCIPLE


THIS IS SO BIG FOR A CAR....
BECAUSE THE DRIVER IS 18''

FOR A CAR JUST USE 8" TO 12" DRIVER.....
THANK YOU FOR VIEWING :D