Loud but make sure you have right mount
919522
Does not fit on all L arms. Specifically sonor and dw mounts. Other than that sounds dope. Loud and cuts through the mix.
2413972
Loud and a little obnoxious and it does make a nice deep loud growl when I step on it. Put this on an old GMC conversion van with a 350, most people look around for a big 4x4 or old muscle car and give me a thumbs up when they realize it's my family van. Since my exhaust exits the vehicle far behind me it isn't that loud to me in the front. I can still have a normal conversation. People sitting in the back have no complaints about noise either but not too many people want to tailgate me anymore.
Update
I have since completed my exhaust work and installed a flowmaster y250300 scavenger series merger and a flowmaster 3" over the axle kit. The merger made it louder and the free flowing super 44 lets the merger do what it is supposed to do, make power.
2000145
Has a lot of power but it's very loud.  Never-the-less, I have recommended it to others with the noise caveat.
4558855
I shopped around via internet and found yours to be the best price and quality. So far, I'm a happy camper. However, those instructions need some corrections and I would suggest Everlast add the mounting screws. I mounted it to my garage wall studs and started pounding away. With about 20 feet between houses, my neighbor came over to tell me he could feel some of the vibration and hear some of the noise from my garage.
1600850
So Awesome mount. Sturdy and seems quite durable. It will fit however it is a bit to thick on the hole end which kinda leaves an uneasy feeling of secureness. Really wish it was so thick on the end. I ended up stripping the threading  on a portion of my nut for the wheel trying to tighten it down. So be cognizant of how much you tighten it down. Overall it looks aesthetically pleasing, just be sure to check your state laws on proper tag displays. It could be illegal to have
586095
Works as expected.  Would be 5 stars, but the product is very loud.
2032200
The mount is great, the only problem is the level that is included is off and caused me to have to drill more holes...  (And these aren't tiny holes)
4844135
Not quite as loud as those you hear on commercial vehicles, but definitely loud enough to get attention. Comes in handy when backing up in crowded parking lots...makes sure everyone knows you're moving.
4301386
I mounted this speaker under my front bumper on my truck right near my winch. Makes it a lot easier to not have to yell to whoever or whatever your pulling out. I run it off of a uniden pro cb, and it is loud enough. Mounting bracket could be changed a lot to allow for mounting, but you can easily make it work. Cord is long enough to reach into the cab, but i have an extension running through the firewall so I can easily swap it out if it fails. I have had this thing fully iced up, covered in snow, submerged in flood water, exposed to piping hot engine temps, and it keeps working longer than any pa i have had so far.
4863606
GREAT AND LOUD THATS WHAT I WANTED WELL WORTH THE MONEY!!-GREAT LOOKING AND EASY TO MOUNT!!--GET U ONE!!---TODAY__EASY HOOK UP
3686043
Filter works great and is low profile so stays out of the way. Only complaint is that it is very loud. When not in filtering mode there is a loud roar that can be heard throughout the house. I've replaced the filter and even the housing kit hoping that it was a dud.
2623113
Great build quality. Holds my h4n securely.
Unfortunately it still picks up a lot of handling noise. This is clearly for mounting only. It will not improve the quality of your audio.
You might even be better off just getting a cold shoe mounting screw.
846758
Good and loud and that's what you need sometimes. They are a bit big but fit in the motorcycle. Huge improvement. Good product. If you don't like those annoying "beep" horns that sound tinny, this is the one you want.
1589411
These are nice but I think I prefer the in the channel mount type over these. I have them on my Tacoma and they seem to be quieter at high speeds these are a little louder being mounted on the outside.
4203871
Nice little wall mounts, just be sure to replace the bolts that go into the speakers with a -20 as the ones that come in the kit has the wrong thread pitch and will damage the threaded insert in the speaker.
4068722
Good horn, loud enough to annoy others, but not yourself. I use this as the horn on my old yamaha. Works really well and durrible.
285238
I like it but be sure that you don't move the stim to much around on the base because it will break loose from the mount that holds to the window!