Sounds like a good plan, let me know how it comes along and your welcome.

I do have traction issues haha, but I also just gotten my kit on and it's the beginning of everything I wanted to do. Need wider footprint like you said so I was looking into wider wheels. Wasn't too sure with lowering although that was an idea too. Everything your saying makes perfect sense and I am probably gonna have to do but I also have a few other things to address too. Got a list of things to now want/buy haha. So I'm thinking for right now, I'll hold on the wheels, still need better brakes and that sort of stuff too. I was also thinking of just getting coilovers to adjust my ride height like your saying. I'm going to have to do it in steps like you say and check each spec as I go. I thank you for your help and greatly appreciate it!

Ok, are you planning on lowering ur Z? Since the Z's have traction issues with normal power, ur Z will have horrible traction if you don't have a good rear footprint, so I would address ur suspension set up first (perminent set up) then measure for correct wheel fitment, because lets say my offset of 25 could sit flush at ur ride height(stock) vs my lowered made it sink in or if I would have put rear camber arms to get into factory specs for better traction and footprint the et25 probably would have been flush and et15 would have poked out the fender, so it's really up to you how you want ur wheels to fit, if you have any questions call me at nine five four-six eight two-two eight zero six, Andy.

My car is sitting on the stock suspension. Only mod to it is nismo springs which wouldnt have much affect to it. No camber arms at all. But yea I have the boosted performance kit on my car?

I understand now, they recommend coilovers in order for you to adjust the height of the vehicle to properly fit the wheels to messing with camber depending on the height setting aka stance or flush with top of fender, but I see ur running bp's kit? so maybe et25 would be better because you wouldn't want to run too much negative camber, do you have rear camber arms?

Thanks man! That really helps, I was looking at the +15 offset for my Z with the stock suspension but the company I inquired with said they recommend coil overs. If I can fit the 11 inch wheel with the +15 on it without any issues then that will be great.

Sup man, the really important number is the offset, I had 19x11 with a offset(et) of 23 with the stock suspension, I really didn't want the et23 but that's what they sent me, I really wanted the et15 so also ran a 5mm spacer so it made the wheel fit like a et18, also if you use a oem located coilover (separated coil and shock) set up i'am sure the room inside behind the wheel would stay the same but if you use a full coilover setup (coil and shock as one (not recommended unless race car and/or re-enforced shock top mounts)) you would actually loose room behind the rear wheel.

Hi, I was looking at volk Rays te37 Tokyo time attacks for my z and wanted 19x11 for the rear. I was told that to fit those, I'd have to get coil overs. I seen you had some and was wondering if that's true? Will they fit on my stock suspension at all? Thanks you.