Sounds like a winner
You need to post a pic of that bad as$ black coupe over here for all to see too.

 

So no comments on the KWv1? I'm really torn between those and Tanabe. I can hardly find any info on them though. Everyone goes straight for KWv3, which would be overkill for me. I'd like to hear why OP went with KWv1 and how they are doing. Thanks.

 

^ Between KWv1 and Tanable I would probably go with the KWs, I have no real deciding factor difference other than everyone loves KWv3s lol. If you want dampening adjustments and maximum slammage then consider looking into the Stance coils.

 

Sorry about the late reply, I don't receive notices from my threads. I do agree with you that KWv3 are overkill if you never plan on tracking the G. The reason I chose KWv1 overall was due to the fact that I have never heard a complaint about them on any forum. That just really backs up the quality of these coils and if I had to buy coils all over again, I'd go the same route. At my lowest I was dropped around 2" and it was still a really comfortable ride with the right amount of stiffness compared to my eibachs. Right now I'm at 1.5" drop all around with about 8,000miles on these coils and not a peep out of them. No issues whatsoever. There's nothing wrong with getting Tanabes for daily if you are on a budget. But if you can shoot out an extra $300?, then I would suggest the KW. These coils really are great for daily and occasional spirited driving (canyon runs etc.) They're about $1200 shipped fyi.

 

No worries, thanks for replying. I haven't found any complaints about the KWv1's either, but then again, it's hard to find anything about them at all lol. Good to hear they are holding up for you and that you would choose them again. I was set on Tanabe before but I did find a couple instances of owners with quality and warrantee claim issues. I also noticed that Tanabe has a 1-year warrantee whereas the KW has a lifetime. I'd rather spend a little extra now for peace of mind later, so I'm thinking they are worth the extra money... I haven't seen them for less than $1400 though.

 

H & R just released a new product for the 08 - 13 G37x and xS coupes....new progressive lowering springs...and I hear that they're the best. Better than going with coils! Especially for daily drivers and those drivers that don't do track or very rarely.

 

Sorry but springs can never compare to coils. Unless you're pairing them with aftermarket struts then it will never be "the best". With struts, might as well get coils

 

Sorry to rain on your parade there Legit...I've been doing this stuff for years...actually since 1979 when I purchased my first "cool" car...which was a Vette. I continued with my GTIs in 85 and 87, then later with my Maximas.....Unless you're prepared to pay a lot of money for really good coil-overs...you're better off with springs and good shocks. It just so happens that G37xS and IPLs come with excellent shocks...and the H & R progressive springs are considered among the finest you can get. H & R have even teamed up with a couple of shock mfgs to offer a near perfect solution. Coilovers will allow you to adjust the ride stiffness (damping). You are not going to continuously change the height or the stiffness. Once you've dialed it in you should stick to it...cause if you make a change to the geometry then you will need an alignment. If you lower you car too much then you need a camber kit. And camber kits can be a problem especially if you have bad roads and salt...in fact salt and sand are very bad for coilovers. After one or two seasons you will have trouble changing anything. Only the best coilovers can beat a good spring and shock combo and even them it's more for track than a daily driver.

 

I will have to respectfully disagree. I have a car with Tanabe coilovers (only height adjustable) and a car with Vogtland lowering springs and Koni Yellows (arguably one of the best adjustable shocks). The car on the coilovers is the G and the car on the shock/springs is a 94 BMW 530i. Based on the ride alone (and I know they are completely different cars with TONS of factors affecting ride) I would go with a coilover over a shock/spring combo. The shock/spring combo, though very comfortable, is not as comfortable as the coilover. It's not harsh by any means, but the ride does not recover as quickly (ie it bounces a bit more) before the ride levels out. If I stiffen it up a half turn or more, then the ride becomes more and more harsh. I think the coilovers are dialed perfectly from the factory. A coilover has a the struts and springs rated for each other whereas a shock/spring combo doesn't. Again, I know there's more to than that but I would get a coilover over a shock/spring combo if available.

 

Sorry to disagree with you SwissCheeseHead....but these days and on a late model car....ie not a 94 BMW....you have to spend a lot of money on a really good coilover to better a good spring/shock set-up. Unless you're prepared to spend upwards of $2k on coilovers...$400 springs and $400 shocks will do a much better job. As I said H & R have teamed-up with Koni to provide a perfect fit option for G37s. Koni BTW is the official supplier of Aston Martin. Nothing in that price range can match the performance....Koni part number 1140-9589....

 

That looks like a nice kit, can't seem to find any sources in the USA. The fact that the Konis are adjustable and the springs have been matched up they should work well together. Only real question is how big a drop would this be. I know it's got the drop listed but many times the drop can be quite different than listed & H&Rs are typically pretty aggressive drops.

 

Unless the ride height of the springs is exactly what you want, I'd imagine folks would still prefer the height adjustability of coilovers.

 

It lists them as~
Front Lowering: 30-35mm
Rear Lowering: 25-30mm
So definitely a mild drop by H&R standards, if the drop is true that would be a nice choice for getting rid of wheel gap without needing camber/toe kits (probably). Agreed, having height adjustment is a prime selling point for coils, but this may be the ticket for those wanting a fixed drop that would stay in budget w/ strut/shocks that would have a much longer life than springs on the oem dampers.
Really like to hear some reviews on these, hopefully we'll get a few members willing to give them a shot.
Probably so new that no US sources have them yet

 

the spring and shock combo sounds perfect for me. I am wanting a fixed drop and a nice ride. And I am on a budget. So Koni Shocks and H&R springs...if anyone knows where to buy this set up I would love to check it out. I might be the first one to pull the trigger and then I can post feedback. I am looking for a net 1" drop on all four corners.

 

Here you go Guys Stance SS's at 25 1/2 front 25 3/4 rear...I'm set at 10 rear clicks to be Stiff for passenger or full tank... 10 was set first in the front but now at 8 for a lil softness .....