what more could you want from a turbo that has done 107k miles is 17 yrs old and 18k of those miles have been at 18psi ? even uprated turbos have had problems doing that, but why pay out for a expensive turbo when a std turbo does the job as well as an uprated turbo.

Now if you are looking to increase the boost past 18psi then yes upgrade needed but if it isnt broke and doing the job well then imo dont replace it.

I miss my RST