Thank you for the review and for posting those SS, much appreciated!
Your review and your dynos resonate with what hundreds of other NST pulley owners have been saying over the past few years. High quality, great performance, excellent value.
The topic of harmonics, vibrations, etc. have been covered in great detail earlier in this thread. Anyone interested can scroll back through this thread for detailed info. But, in short, NST pulleys will not lead to any harm on this engine.
We list these pulleys on our website, along with info and pricing, shipping is automatically calculated by our online shopping cart at the time of each order, and we'll be offering FREE shipping specials for most of the summer this year:
http://www.nonstoptuning.com/NSTPULLEYS/pKitNis370.html
We also offer pulleys for many of the other popular Nissans: 350Z, 240SX, GTR, etc.
The 370Z kit is a very popular one in our catalog at this time and we've had trouble keeping up with demand this year. Unfortunately, we are sold out as of this writing but we do hope to have our next batch available for shipping within the next four to six weeks. Anyone interested can place an order on our website or contact us by phone for more info.
Thanks again, best of luck with all your projects everyone!!!
MIKE @ NST