Review on Pit Bull CHIH310 12-Volt 🚂 Air Horn Upgrade for Optimal Performance by Darnell Evans

I bought this product about a year ago and am very happy with it. While there aren't any installation instructions, if you know a little about it, you can easily figure out the installation procedures. I installed mine with the same shifting and steering wheel horn button. Two comments, not negative but informative - DB level is adequate IMO but pitch is a bit high. I would have liked a deeper horn tone. Second, the supercharger draws a lot of current, especially when you're relying on the horn (e.g. when you're cut off by an idiot or you're trying to avoid a collision). If you just "buzz" the horn, the current drawn will be quite low. However, if you lean on the horn and plug it into a standard 15 amp horn circuit, the mini fuse will blow. And as you know, you should not replace a 15 amp fuse with a 20 amp fuse because the wiring size is the same as the (original) fuse used. So you will either have to replace the 15A fuse if it blows or rewire the circuit to run the horn directly from the battery with a relay and 20A fuse.