Bump. Let her run for a bit today and I can hear the turbz spooling up what seems to be pretty smoothly (going by gauge and sound alone). There is an exhaust leak by the cat so it may be very likely that the cat is clogged.
I really don’t feel like pulling this into the garage to fix it, but if she does’t sell shortly I’ll be taking a closer look.
On another note, not sure where my brother attached the vac. gauge to (some line under the hood… but I haven’t traced it back yet) but it is showing just shy of 15 at idle… not sure what that means though. lol
My evo runs at 21 in.hg at idle. I had a vacuum leak due to the BOV line at one point and the car showed 15 then. I dont know what your stock vacuum is but thats just my $0.02