yeah, i read, read and read some more. as i posted previously in your thread.
my cobb DP tapers down to 2.5" and mated up up to the OEM exhaust no problem.
i picked up a used Greddy SP Elite from another member. ordered a new donut gasket and 2 more grimmspeed 3" gaskets so i can throw it on soon.
*among other things on my laundry list.
i hear you on the NY winters. i'm in MA but i spent 7 long years up state @ Ft. Drum / Watertown.