I'm wondering if anyone has ever installed the 95-99 Maxima Stillen RSB on the 2000+. In other words, is it the same unit?

 

the sway bar for 2000+ maximas come with a pair of extension sleeve for the ABS lines.
the rear suspension of the 5th gen and the 4th gen are slightly differnt in design. the control arm on the 4th gen are located in front of the beam(towards the front of the car) while the control arm on the 5th gens are located behind the beam.
i don't know for sure if the sway bars are 100% identical in design, but i'd say pretty close.

 

I took my Stillen rsb off my 95 SE and installed it on my new 2k se. There is an issue of how many holes are drilled in the bar. The 2k uses the ones toward the back.
Stillen should be able to answer the question to be sure.

 

yeah, you're right. the 2k ones have 5 holes on the sway bar compared with only 4 on the 4th gen sway bars.

 

shouldn't it be even because of two sides?