Positives:1) The sound on these horns is very loud (like train) !2) easy to install - but missing instructions to setup your own horn switch (and not use car horn).3) fits inside frunk of an EV (Model Y)4) great priceNegatives :1) Hose size too small and will break in summer heat (like other reviewer said) .2) my pkg was missing barbed brass connector3) I used tape, sealant and tightened nut at Horn all the way - but kept leaking - draining battery on EV.I bought larger house and a few connectors at HD $15 and now it works great.Suggest mfgr increase size of tubing, use better barbed connectors at both ends, provide small water clamps - just charge us $5 more =D