Good morning.

I have had my car (2012 G37xS) for a couple of years now and the car has definitely been lowered. I like the ride height and don’t want to raise it. I took some rough measurements and it appears that it's just under 26" to the wheel well in the back and 25.5 or so in the front. I bought new tires earlier this year and I am concerned about uneven wear. I don’t know what the springs are, but I had the car up on a lift and everything appears to be stock (white shocks that might say Nissan on them and black springs with no obvious markings). I posted on Reddit a couple of weeks ago and someone recommended I take it to an alignment shop and find out what springs they were (and get an alignment). They also suggested I post here and ask.

I took it to Discount Tire last weekend. I had recently bought tires from them, and apparently the shop by my house is one of the first in the chain to get alignment equipment so I figured it was new stuff and maybe they would give me a discount since I just bought tires.

The tech could not identify the springs. He recommended I get adjustable upper control arms on the front, and what appears to just be a bolt kit on the rear. He did not charge me.

I used to own a DSM GSX and it was lowered and had a camber kit, which was just some bolts with spacers, but it kept the negative camber down to a reasonable level. That car also had Tokico “blues” and even with them set for the most comfort they were a harsh ride. I love the ride in this car the way it is and really don’t want to give up that level of comfort. At some point I might go all out but I want to wait until it is at least paid off first.

I looked at some kits on Z1 and found some complete kits like their own, and one from Kinetix . I also looked at some coilovers, but am I correct in that if I bought them, I would still need the kit or something like it?
Someone recommended spacers but the alignment tech said it would bring the wheels out too far and they would rub.

I saw this post on getting a discount on Mevotech arms but when you add it all back up it is around the price of the other two. I also have seen Megan kits. I have about 120K miles on the car and although the suspension feels great, it might be with at least considering replacing everything at once.

For some reason no matter how small I make the file sizes, uploads are stalling, so here is a link to the alignment sheet and a couple of pictures of the car showing ride height:
https://photos.app.goo.gl/3oNLQPYNpP8vQBwf7

 

I run the Mevotechs as they are reboxed SPC 72130s (as noted in my post).

I believe Moog reboxes the rear SPC adjustable camber arms that I run: https://www.myg37.com/forums/brakes-...for-cheap.html

I bought these from Z1 before I figured this out: https://www.z1motorsports.com/contro...RoCq60QAvD_BwE

I have never seen any negative criticism of SPC, other than they are not the cheapest path.

Based on your estimates, you are a 1/2 inch lower than me in the rear and a full inch lower in the front, so I'm surprised by your alignment specs as they are closer than I thought they'd be.

 

Even though the alignment sheet shows "rear wheel drive" I have AWD, so are the front arms the same?

For the rear adjustable arms, I can see some listing for that part, but they all look to be either out of stock or about the price as the ones on Z1. On the Z1 arms you linked, it shows it with the off center bolt and "frequently bought with" the kit that eliminates the off center bolt. The person at the shop sent me a picture of a kit that looks like it is just "more off center" (allows for a greater degree of correction) but I also read in that kit on Z1 to eliminate the off center bolt that they can get knocked out of alignment so that is what the kit is for?

So my next question is:
With those arms is that bolt still needed?

If I got the Z1 parts for the rear and the Mevotechs you mentioned, that would still come to around $650ish which is around what the Kinetix cost. Is one better than the other?

If that bolt eliminator kit is recommended, it looks like this kit from Z1 includes it and might be around the same price if you add in the price of it, it all is around the same.

If the bolt eliminator is recommended I might just get that whole kit from Z1. I have heard good things about their customer service, and I have my eye on some of their other products. And to confirm, I would still need to buy all this if I bought coilovers, correct?

 

I'm out of my comfort zone discussing AWD suspension nuances, coilovers and providing a detail comparison of the SPC RWD hardware to other vendors, so I will let some of the others with the AWD platform and those components installed comment.

My rear arms came with the toe bolts and my mechanic installed and used them to adjust rear toe.

 

Thanks for your help!