[unaslob]

RealWheels does not allow you to swap things in and out.. they just sell the kit.. COMPONENT PARTS sells everything piece by piece. the compressor that they sell is the best one... small, powerful, easy to install. infact you download the instructions from realwheels for the compressor. the rest is patience, and is dependent on what function you require.

considerations to make:

1) lanyard vs solenoid.

solenoid..
what you can do is have a switch that would allow you to use the steering wheel horn as your airhorn, and switch back and forth. this is practical. things I dont like is that you dont have any control over the volume of air you send to the horn.... hence no control over the volume.. there is so such thing as a little toot... also with the solenoid, there is a slight delay when you lay on the horn. I think the solenoid lacks control. with a solenoid you can also install a separate button for the horn. installation is relatively easy

lanyard:
I LOVE THIS.. gives you the true trucker feel. you can control volume. it is there when you want it. installation is a bit more of a prob... you have to find a place to put it. if you have a sunroof then you are limited.. i do not, so I have a large console where the sunroof would have went. My lanyard is hidden in the second sunglasses (middle) bay. open the sunglasses holder, the chain drops down.. and start yanking. it does take some creativity installing, but well worth it. for those with sunroofs, I guess you could put it in the sunglasses holder, but I dont know much about it. they also make a 'foot petal' that works like a lanyard, dont know how well it would install..

2) airtank.
probably the easiest to install, fits great where the factory compressor would be. I have a gauge and a shutoff valve to the tank. I would go with the larger tank.. if you are going to get a dual horn. they are pretty air hungary... If you decide on a single horn... they you can get away with a smaller tank.
I went with the 14 inch long tank


3) horns
I think that these have to be mounted outside. inside they will be muted... plus they look sharp. of you dont have a bigger roof rack, then you are going to have to drill, not the end of the world. but something i would not have done. I have a gobi rack so I mounted it to that... if you dont have a rack, then maybe the best option is under the hood... then the realwheels is about as good as it is going to get.
I went with the wolo challenger Model 805
I would consider a longer set of hadley horns, they are the trucking standard.. the best.. but they will be long...

4) options
I have two airsources with quick connects. the realwheels setup has some goofy connection that is awkward, plus there is only one point to connect to and it is where the compressor is, which is under the hood. so to air up, you have to take off the winch (pain in the ass), open up the hood (pain in the ass), connect that goofy connection (pain in the ass), and then stretch that short air tubing to every tire (big pain in the ass.. it barely reaches the rear tires. I have front and rear quick disconnects.. look nice, easy... very easy.. I can air up in a fraction of time... plus, the guilty pleasure, when you disconnect them, you get this nice loud "puhfissh" which sounds awesome... it is a little thing, but it turns heads...

I feel bad.. I keep talking pics. and am being lazy.. I will try to scan them in tomorrow. I promise.

installation was relatively easy, you have to be patient, and creative depending on how much you want to do.. if I could do it again (and may) would put the compressor in the rear. I use the horn alot... so it has to kick on about every other day.. and when it is under the hood, you hear it kicking on. with a small tank.. that would be much more often...

the most difficult part was probably the lanyard... the wiring the tubing was easy, lengthy b/c the compressor and tank are on opposite ends...

unaslob

the great part of this add on, is that it is relatively cheap, but soo different