I'm very interested in the Pulley Boys 2.3" Pulley upgrade. The stock supercharger has a reasonable amount of power for making it up hills and such. I would like to add a little more umph:)

I'm considering the Pulley Boys 2.3" pulley upgrade as well as an air intake. I'm sure the exhaust will be changed out a little further down the road.

Has anyone else done this upgrade?

What, if any, other supporting mods did you need to do (ie. injectors, piggyback fuel computer)

How much of an increase did you see in power, feel, towing?

Have you done the Supercharger Bypass valve elimination mod?

Thanks
Brad

this shop is minuites from my place but never really heard about them but ill check the shop out next week and get some good info. now im interested in the pulleys if their worth the mod!

Just to make sure we are on the same screen, are we talking Xterra or Altima?

You must have been reading my mind, I was just about to post a question about that. Ill keep an eye on this one. I found a site..South Florida Pulley Headquarters...says with a 3.5" youd see no less that a 26 hp gain for $109.00. Thats some good power for a hundred bucks.