Does anyone know anything about these?

Tanabe TNF130 NF210 Lowering Springs Set for Infiniti G35 Sedan & G37 Coupe

 

They've been around a long time, a mild drop spring that often drops the rear lower than the front which isn't a great look TBH. Also they're one of the few (maybe the only one) that has only one spring application part # for ALL the G varieties except convertible.
If you're considering lowering springs I'd look at the Tein Basis coiloers, about 2x the price of springs but you can get exactly the height you want and not compromise your OEM shocks. Only if you have a RWD though.

 

I have an xs

 

I am looking for a very mild drop spring for the x

 

Go with swift springs you won't go wrong and it's a mild drop! I love the ride and how it looks!

 

do you have a camber kit?

 

Agree, for the AWDs the Swift is about the best choice, especially for a mild & even drop.

 

+1 on the Swift springs. I run them on my xS coupe and love the look and ride quality.

 

Ok it's decided swift it is?

 

Are these the ones?
http://www.ebay.com/itm/261994957088?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

Yep, that's the part # you need and would be best if you purchased at least a rear camber kit. You can get the 4 bolt kit rather than the rear camber arm, rear toe bolt set. The 4 bolt kit goes for about $50 if you can do the install.
Here's that kit (and you need two kits for the back)
SPC Performance Camber/Toe Cam Bolt Kit; Pair, Reqr's 1 per Wheel INFINITI FX35
And the install instruction sheet
http://www.spcalignment.com/instruct...65-INS_WEB.pdf