From the 370 forum they may be having some coating issues. A few guys needed to sand down the inner ridge. Apparently the coating was too thick. I'd wait to see what if anything they do to rectify things.

***edit***

Ok... seems like a very small few pulleys have the issue.

Buy with confidence! lol

 

Can any of y'all chime in on a review of years of driving with the pulleys? (Any brand)

Any issues or leaks?

 

I would like any updates/info on this as well. Seems like a well spent $150 + install if you get 5-10 hp

The old link doesn't seem to work. I believe this is an updated link to the pulleys.

Did anyone do the install themselves? How hard was it?

NonStopTuning Lightweight Pulley Kits - Nissan - NonStopTuning

 

Bump. Any update on this? Very reasonable price but I'm very skeptical about this product. If run with just the Nst underdrive pulley what belt would be needed to run with stock setup? Looks like they don't have the alternator pulley on there site anymore.