^I spose the man has a point.
http://www.hornblasters.com/products...train-horn-kit
A little cheaper, larger tank and probably much better compressor. Not to mention 4 horns-I wish the horns were metal and not plastic but oh well. Only other thing is having to custom install the kit which I don't see being an issue but that is a con where the Somo one bolts right in the engine bay.