2013~2016 Air Springs for Towing

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Mazda CX-5 Touring AWD
I'd like to add air springs to my 2015 CX-5 for towing a tiny camper. There are a few posts regarding this so I think it's workable but neither AirLift or Firestone's Coil-Rite list Mazda in their selection tool. So, while I'm waiting for my exhaust to cool down enough to crawl under it and measure the coils to choose one of the universal kits, I was wondering if anyone's used either brand, which kit did you get (model number?), and any other information on using air suspension helper springs with the CX-5? Thanks!
 
Years back I bought a set of ride rites and made a post. I sent then back because they didnt for my lowering spring
 
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