Review on 🔊 GAMPRO 12V 150db Air Horn: 18" Chrome Zinc Single Trumpet - Compressor Included | Ideal for 12V Vehicles, Trucks, Lorries, Trains, Boats, and Cars (Black) by Jerardo Phi

Very disappointed with this product because it can't be 150db, not even close to 89. My stock horn is literally almost twice as loud. However, the relay and wiring harness I received was rubbish. When you plugged the relay into the harness connector, it pushed the wires out the back of the connector. If you've spent an hour messing around with cheap Chinese parts, you'll understand The harness is too complicated and a mess! Worst of all, my install was very long because I wanted all my wires hidden and the horn and pump hidden. When I finished, I hoped to pierce my ears with pleasure, but still the weakest, saddest little horn! I was so angry and silent!