Review on 🚚 Enhanced Safety with the Marco Xtreme Blast Electric Horn - Italian Truck Accessories | Ultra-Loud Car Horn at 120 dB | Dual Compressor for Improved Performance by Justin Butler

was installed on the late model F150. Standard horn measured 95 dB in manual mode. These horns produce a solid, repeatable 117 dB. It's about as loud as a gunshot. You don't have to run a lot of hose to the speaker and the compressors have to be mounted vertically. Pipes are less than 18 inches long (estimated), so take this into account when installing. It looks like a dump truck or some other big truck. This is effective for drawing the attention of inattentive drivers to the mobile phone. Compressors are good. I tried replacing some Wolo 808cs which were supposed to produce better pressure per square inch but they were almost 4dB quieter so I put the stock Marco compressors back in. For a direct drive horn, this is great bang for your buck.