This turbo is based on a Schwitzer. It uses a b1 outlet(downpipe and clamp). This turbo is wastegated(externally,not internal like the 55). It spools much faster then a B1 and moves "tons" of air. The exhaust housing size is between a 12-14cm. I have some upgrades to my truck such as, laser cut DV's, pdr370's, 4kgsk and a few other mods and it takes 105mph to get to 1300 on my pyro. This thing at 70mph on the highway is running 10psi and my egts are only 600-750 and sometimes 850 depending on these great ky hills. Spools very fast, and has a great range. This turbo is also good for future upgrades such as twins b/c it would be an excellent turbo for the top.
This turbo is also great for towing, b/c of it's cooling capacity and instant spoolup.
As i said before i have ran mine to 50psi a few times but would not recommend doing it very often but the mid 40's should be fine.
As long as we get 10 people the price is $XXX+shipping($20-30usually)
Chris