HU-S6-1
$149.99
I was getting bored of my shocker xl kit so when I found out there was an upgrade kit for it I bought it straight away, managed to squeeze them in with my other horns and fitted a new bigger tank, well all I can say is the results are second to none, the two extra horns fill the sound in better and combined with the biggest tank give for a louder longer horn press which is enough for me and my whole town to hear so all in all well worth it!
On my second hb4 on 2 different e150 vans. Currently running the nightmare edition and didn't think it could be louder until the upgrade, good god you should be adding ear muffs to every purchase. But seriously best money i ever spent on horns. The first hb4 i bought is still going strong after 7 years and i just cant break them or wear them out. Everyone that hears them wants a set and i tell them go to hornblasters.com you won't regret the purchase!! I don't know where to send pictures but its super easy to install, we even installed some of these horns where i work at North trail rv in ftmyers on coaches and they are louder than the bigger horns installed from the factory. Great product and I'll continue to recommend to everyone.
I'm enjoying my recent purchase from hornblasters. Adding on 2 more shocker XL horns definitely makes a difference. I will always go to hornblasters for any future purchases. 5 stars for sure!!
First off the quality is amazing like always from hornblasters. Great price and fast shipping. The xl6 upgrade was the best thing I did for my existing shower xl4 kit. The addition of the 2 horns made my kit wat louder. First time I hit the horns after the install it scared me because i didnt expect it to be so much louder. Shakes the floor of my truck and shakes the soul out of anyone near the truck! Highly recommend this upgrade
