After a month of use it works great on my 2013 f150 STX.

Works Great

This product is amazing. Very high quality. Affordable price. Ease of install. Prior to purchasing this kit, I had installed a 6 1/2 in lift on my truck. The shocks provided with the lift were very squishy, meaning the rear end would bounce 3-4 times every time I went over a speed bump (very annoying). Additionally, even though the lift was supposed to level out my truck it still squatted 1 3/4 in the back (not a fan). With the addition of a hitch mounted trailer or boat the situation with the squatting became even worse. I found this kit online and it was comparable to parts estimates that I received at my local performance shop. Of course the per-shop wanted an additional $300 to do the install. I figured I was capable to take on the task myself with the following basic tools: socket set, utility knife, basic wrenches, floor jack, jack stands, air compressor and a couple wooden blocks. Air tools, etc would not have been much help due to constrictions in the mounting area. However, the information provided is correct regarding not having to make any modifications or drill holes that were not already there from the manufacturer. Patiently taking the install one step at a time, it took me working alone 5 1/2 hours to complete the task. I am extremely happy with the out come. I did not choose to connect a compressor to the system as I don't anticipate having to increase/decrease/check the amount of air in the system any more frequently than I do my tires and when I do a compressor will obviously already be available. This is a very well built and stable system. Some personal thoughts/recommendations: 1) if you have a lift kit, get the kit with the recommended spacers, 2) after install, while testing the system for leaks it recommends putting 70lbs of pressure in the system for a period of time. After which if there are no leaks found adjust to your desired psi. I chose 50lbs psi, this raised the rear fender well of my truck up 4 which now rids me of the squatting issue even when trailers etc are connected and if possible gives back some of the original aerodynamics being 2 higher in the back now, 3) a very pleasant surprise which I'm sure everyone would like to know is how did it affect my ride?. I have an F-150 Lariat SuperCrew 4x4, which rode like a Cadillac when I first bought it from the dealer. I now have that same ride again. This system is in no way like the old time air bags that made you think you were in a log wagon. The ride is smooth and the issue with bouncing multiple times after passing over a bump are gone. I couldn't be more pleased. I know my comments were extensive but hopefully I covered everything you may have questions about and I sincerely anticipate you will have the same satisfaction if you choose this product. S/RDBing

Bags are good quality but the bolts are no good. I replaced them with grade 10 since couple of them sheared off while driving.