Cycle Shack turn-outs are loud, look great, and are CHEAP from Jireh Cycles.

 

For about $40.00 you can get a wicked loud dual frequency air horn. Made by Stebel (sp ?).

Guaranteed to get immediate attention and make the cell phone go flying.

 

40 inch drag pipes are about 60 bucks on ebay or Jireh. 30 more dollars for torque cones. Less than 100 dollars are your about all loud as you need.