Review on Mega Blast Air Horns: Ultra-Loud Black Air Horns for Trucks, Cars, SUVs - Train Sound Guaranteed by Jonathan Robertson

Overall I like these horns. They are very loud and sound great. I would give 5 stars but the installation was more difficult than I expected. They do not come with wiring or switches. After getting what I needed from the local car dealership. I spent the next 4 hours installing them. Each horn has its own compressor. Each compressor has its own relay that needs to be connected. The quality is excellent.