I was driving around my very large private track today....
and I had the Stage 2 WRX in fifth. Along the giant straight I decided to put my foot down in fifth. Now, I've gotten my car up to about 140mph on one occasion. It took quite a bit longer than my 3000GT did when it was non-turbo and stock.
I finally look down and catch a glimpse of the speedo blasting past 135.. I was like . It was insane. I never thought my WRX would have such top end in fifth gear. The difference was crazy. I'm actually kind of happy with my WRX's top end now. I just had to share this with someone.
The stage 2 also solved my boost creep issues. Yay!