I'm not sure your friend knows much about RS-R. RS-R is a premium Japanese aftermarket brand. They specialize in exhaust system. They've been competing in Motorsports for some time now, most recently in endurance racing and EV racing. Although they might not be the #1 Japanese brand, they are one of the first to release parts for our make/model, which is nice considering nobody else is. I'm unsure if the lack of parts availability is due to the vehicle in general or if it's just the slow death of aftermarket. This obviously is attributed to all the counterfeit parts sold over the years. This is why most of the larger Japanese brands don't manufacture domestically here in the states, HKS as being one example. The demand is far too low here to make it profitable. lastly if you didn't know, a majority of the coilovers come from the same place, China. They are manufactured by one place and rebranded. Although they are slight variants they are all pretty much the same. I personally rather purchase something made here in the US based on the fact that it's easily serviceable, the issue is no company is manufacturing parts for our car yet, at least not stateside. I tried contacting ProParts who has already developed a coilover kit, but have yet to get a response.