Posted by what brand horn? on April 05, 2003 at 21:37:14:
In Reply to: Cost of 5th valve?? posted by Mr F. Ithvalve on April 05, 2003 at 21:13:24:
Top or bottom mount? valve body length DOES matter,
routing and headscratching takes time = money
ballpark? 200-800 dollars, expect close to the top of the range
if you have a name-brand horn and use name brand parts (recommended)