I'd be surprised if someone made this, most folks would prefer customizable height at least and fixing height probably wouldn't allow any where near as much of a cost savings as fixing damping in the design.

Just get the Tanabe, adjust the height during install once and you've basically got what your looking for, the cheapest tuned suspension with the minimum amount of adjustability available. There is a Type II option without helper springs that's probably even cheaper, not clear if it's availble for the G37, application link is broken for me.

 

hum....i had a set of coilovers on my previous car....it was overkill for me....it's all personal preference when it comes to modifying a car...just because people assume that coilovers are the best for track, etc etc, but it doesn't necessarily mean it's meant for everyone...i've been there, i've done that, now i just want a spring and damper setup...but unfortunately, nothing available on the market

 

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x2. Its not really about the money, but coilovers just weren't for me. I had an Eibach/KYB AGX combo on my last car and it was exactly what I was looking for. I only needed dampening adjustment and didn't care to adjust my height all the time...plus I'm not a fan of corner balancing, etc.

At first I was determined to do the struts the same time I was putting in the springs so that I wouldn't have to do a separate install. After waiting for a while with nothing available on the market, I decided to just do the Eibachs for now. I'm surprised Tein or someone hasn't released a cup kit.