With this kit, plan was to "pretty it up", ie coat all the piping, re-wrap the headers and hotside, and run it as is.
The more I considered this, I realized the turbo was bigger than I needed for my goals/aspirations. When I bought this kit, I planned to build the engine this winter, and make big power, somewhere in the 1200-1300whp range. The turbo is fully capable of it and more and the original owner was making similar numbers on a stroker.
The more I sat around and thought, I came back to earth and realized by shooting for these power numbers, I would be doubling or tripling the cost of the build, all for power I really don't need and will rarely ever use. Sure it's fun to make big numbers, but I found even with a 700whp car, it's difficult to use on the street other than in rare situations or in Mexico a few times a year with buddies.
With my re-entry into the atmosphere and settling on a much lower power goal, I started looking into turbo options that would be a drop-in replacement, ie, a smaller T6 turbo that would spool quicker and be more fun on the street. I contacted Work Turbochargers in Alabama, gave them my goals, and had them give me some options. A few days later, I had a new turbo on my doorstep.
I went with a Borg Warner S430SX-4, 82mm Forged Milled Wheel, 96/88mm twin scroll turbine wheel, 1.32 A/R. This will provide me plenty of flow, and won't choke out until around 1200whp, which is more than enough headroom for me.
Comparison of new turbo to old:
I was planning to save some room by downsizing. Not really the case. It actually is larger side-to-side and front to back than the 106mm.