Firestone Airide 4155 Coil-Rite Rear Air Springs Kit fits 2004-2025 Sienna and 2005-2009 Uplander | 5-35 PSI | 1,000 lbs Load Capacity | No Drill Installation | Made of Elastic Polyurethane

I'm using my 2011 Sienna 2WD XLE as my work truck. I probably have about 1500lb tools in my van. with those air pillow really help preventing the rear suspension from bottoming out. I drilled two holes in the trunk to run the air tubing away from the exhaust. Have been couple days and so far so good, and I hope it will last. I inflated them to 30 PSI and noticeably increased couple inches of ground clearance. The ride was a little bouncy but much better than bottoming out.

Bags are well made and the kit includes everything you need for install. I personally like being able to adjust the bags independently depending on the load. I know others buy a T fitting to air the bags up the same. The kit does not include a T fitting.The ride stiffened up very nice and heavy loads are way more stable, especially while turning. Installed on a 2016 Toyota Sienna.

Ive had 3 sets and they keep going flat, After I put them in and fill them up with 25psi I do a soap and water test to see any leaks. no leaks but over time they ended getting a hole in them some where because they never could air after a week. thinking of something else now to help my car

I bought these over another popular brand because I like blue better. I did not notice a diffrence in quality as they probably from the same factory. These have really helped with rear spring sag while the vehicle is under load. Install directions are really easy to follow and straight forward. Took about 1.5 hours to install from start to finish, that includes collecting the tools, lifting the vehicle, installing the bags, lowering the vehicle, putting the tools away, setting the p.s.i., and a short test drive.

Installed the air springs myself on my 2008 Uplander (extended version)The install instructions were kind of vague (that's why it gets a 4/5) but I got the job done after a few hours.I pumped 17-19 psi into each air spring and I have not had a leak. They have held air now for almost 2-months.The product works great I no longer have the van springs compress when I drop my boat on the hitch.

Really made a difference in many ways. A lot more stability and less sag.

Excellent product. Worked well with a family of 7 and a packed out 2013 Toyota Sienna! We had a loaded trailer hitch gate filled with bags as well and it handled very well! Brought along a bike tire pump to inflate if needed, which it did mostly because of a change in temps from our home to our destination. Highly recommend!

purchased for mini-van with scooter lift and scooter. Ride height did not substantially change just much firmer ride. The installation was not to difficult and the quality of all the parts was good. If on a budget and needed additional support for a short period this would be a good solution. For a sustained heavier load a more permanent solution Ie heavy duty springs would be more appropriate.

Easy to install and strengthen the coil of my van

it fit my 2010 sienna.

i bought this kit for my sienna 2018. installed it and very disapointed. does not improve the ride. it does not level the vehicule when i put weight in it. i returned it and i lost money on the restocking fee and the shipping.do yourself a favor and buy a coil spring buffer instead. easier to install, more reliable, does the same job.

These bags are solid. The bags themselves are very durable but since I’m using these in a universal fit situation (Highlander) I often have issues with the lines wearing through. This becomes worse if you don’t keep a little air in the bags when not towing. The problem comes into play when I try to repair the line, the brass fitting will never release the line due to dirt build up and corrosion. So I end up replacing the entire bag. My latest kit came with protection sleeves for the lines so this should help going forward. Premium price for what you get but they do the trick towing my 5500lb (gross) trailer

I recommend