Airbags- built in air compressor or manual fill?

On board. I use wireless air and love it.

I ran ours for the first 3 years manual fill. Installed Air Lift quick shot compressor kit in '04. Dual control, in dash gage/ paddle switches, 2 gal. tank. Gage almost worth the cost.
Im remembering more like 350/400 but that was then...

Easy enough on the manual fill- but 'seeing' the psi, filling/dumping adjusting from the cab simply nice. Certainly a lot more convenient. Justification of cost? that's an individual call. Ive never regretted, was pricey but if setting up new truck I wouldn't hesitate to do again. Always playing with the air, either when loading or unloading, leveling at camp or adjusting.

12 years old and have only had to replace one of the paddle switches.
The manual fill valves are still in place.

We also use the bags to make it easier to hook up the bumper pull. It always gets a look by people around.

As a long time anti air bagger I too now have them!! I have way too much junk and combinations to haul them. The overload springs were just not cutting it anymore. With the TC the ride was OK but the TT was just enough to engage the overloads and the ride was very harsh. And I can put more air on the heavy side of the TC.

On a recent trip back from MT I had a Razor in the back and towing my TT. All was good until I hit a section of concrete road. Bang, bang, bang on the expansion cuts!! Had to pull over and let air out a couple times till I got it right then air back up once on the asphalt. I decided then the wireless compressor was in my future.

Now being able to adjust for different load and road conditions on the fly is worth it to me.

I did not like the idea of installing compressor with electric stuff under the truck bed and having equipment trailer, wanted the compressor to be portable for tire inflation.
So I install the Firestone dual bag controller on the floor next to driver seat and put tire shrader valve on supply end.
Compressor was sitting on the floor behind the seat and I could connect it to the valve while plug-in to cigarette lighter 12V.
I never need to inflate bags on the fly, so never used the option, but adding some psi in the morning was very easy.
The only issue I had to watch was restarting the compressor under high pressure, what would burn the lighter socket fuse.
Had to disconnect the chuck, start the compressor and then hook it up for pumping.
BTW we do have electric compressor in our Mercedes with air suspension.
Those compressors are expensive new, but you can buy used pretty cheap and rebuild kits sell for $17.
The compressor has build-in drier and hose with a filter. They operate at 160 psi easy and last for years.
Would I need another pump for truck, that is what I would look for.
The same Bosch compressors are used by Audi, VW, Land Rover and more, so lot of suppliers.
Bosch compressor