I have a K5LA horn. I have an 8 gal tank on the way. I have been told that I need two compressors. What Compressors set up should I get. I am being told to get dual 400c viair compressors. with a 110/145 pressure switch. I am worried about having to upgrade electrical system. This is going into a 2016 Jeep wrangler. I have had a heck of a time trying to find places for all the horns but have finally installed all horns and have a spot for the tank.
With eight gallons you’ll need a twin kit because most single units (apart from the mighty Oasis) are only rated to fill 5 gal. under their warranty.
Here’s an overview of all the options (it’s out of date, but should still give you an idea)
https://www.trainhornforums.com/showthread.php?t=6219