they are enki rpo2 17x8 fr and 17x 9 rear. tires are t1s 245/45/17 and 265/40/17.
weight of the 17x9 wheel is about 15 lbs.
acceloration is noticeably quicker. it feals as if it revs quicker. I am really likeing the handleing improvement. it has higher limits and is more balanced at the limit. I have fallen back in love with my z. i think i'll keep it a bit longer. and play with a few more things

 

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Sweet pics, my RPO-2j's will be here hopefully by Thursday. You don't have any pics running down the side do you? I was wondering how far the wheels set inside the wheel well. I'm glad to hear that you can feel a big difference. My wheels are going to have some R-Compound wrapped around them so I can't wait to feel them!

 

does that help.if not I can take some more pics. they don't sit out enough for looks. it looks good imho but an 18 would look better in the rear. but imho this setup yields better performance. which was more my goal. what size tire are you running?

 

Looks great. I was just curious too see how far they sat in. Performance is actually my only concern, I think they are one of the best performing wheels available for the Z right now. Thanks for the pics.

I went with 17X9's all around and 275/40's. With the new Nismo swaybars, I'm wondering if I shouldn't have just gone with 255/40's for the front since the understeer seems to have been taken care of. Oh well, tires are cheap enough, I'll just have an extra set of rear tires if I decide to change.