I am planning to purchase this item, but i really don't have a clue on how well this works. I've searched on every website i can, but i couldn't find enoughinformation on this product. I also searched in this website, but also nothing was found. If anyone has an experience on this product, please give me some information how it is. Also, i heard that RPM doesn't work in some cars. How about 350Z?

 

I have Gtech road racing model. I found it worked quite well actually, very close to published specs but the HP and TQ numbers were WAY off on mine. Maybe I caliburated it wrong but wow was it ever off. As for the RPMs, i found they were always consistent with my tach.

 

I have the GTechPro RR, and I use it for data acquisition for Solo. Works really well for that, both for measuring G loads and RPMs.