Here is some info off, http://www.autospecialties.com for a UDP that I got as a gift:

89-94 3.0L DOHC Maxima 15% Reduction ASP339800

Would that fit my max? It's a 92 GXE...

 

You have a sound system and want to put on a UDP?
They kinda don't mix very well.

 

hehe, I forgot about that , time to sell ;p

 

and what does that have to do with your sound system? And it says it's for the DOHC engine and you have the SOHC, so it may not have fit anyways...

PJ

 

I believe an UDP (Under Drive Pulley) is a smaller pulley that replaces your stock pulley. The pulley transfers power to your AC, accessoy power, etc. By making the pulley smaller it uses less power which could be converted to HP. Since I am running a sound system, I need all that extra power, and usuing a UDP would not be a good idea. I think that's what it's all about anyhow

 

If you have a system and have a UDP, then just get one or both of:

a capacitor
a 2nd battery in the trunkthat's what I did when I had my 90SE