Hi,
I know there are lots of topics about pulley set, but I'm just wondering which one I should consider to buy... since they are about the same price (I found UR w/ belts for $280 and AMS w/o belts for $220). What are the pros/cons for each one?
Thanks your help.
Btw, I have a 06 Revup.

 

With your mods, I would spend the money elsewhere. You could see pretty decent gains from an Uprev tune.

 

Thanks, but I'm already tuned w/ Uprev.

 

If you use your Z as a daily I would go for the light weight standard size and stay away from the under drive pulleys. Thats just what I have learned from researching.... I just received my UR standard size pulleys and will be putting them on this weekend.

 

Lol did you just now add Uprev to your sig or was I blind before?

 

Haha yeah just added Uprev plus other things I forgot

 

Ok please let me know ur feedback when it's installed...!
And to answer ur question, no I do not use my Z as a daily drive.

 

+1.

 

Thanks for ur answers guys, but my question is not stock size vs underdrive... It's UR vs AMS. Which one is better? Or they r all the same....?

 

Whichever you choose get yourself some quality drive belts. Gates for example.

 

Like this one: http://www.conceptzperformance.com/C...on.php?II=4421 ?
Thanks.

 

Yes. You will get lots of reliable miles with these belts.