Originally Posted by Tazz
I got mine from 
PTC FACTORY OUTLET via eBay for $55. I've used them on other cars without problems with the elements. Other than driling the one hole, not much of a hassle. I took off the mounting nuts on the horns and loktited them (had to turn one around anyway) and I always use allen head bolts so I could reach it and still have the two horns almost touching, and I always use stainless and nylock type fasteners, too many years rallying!
i bought a "freeway blaster" horn at advance auto parts to test and it bolts right up to the stock bracket but it is only about 10% louder at most. The hella horns are much louder. i may get me a set in the spring.