I just put in that Y pipe full solid, it is an excellent product and they gave me great service and quick shipping. Definately get this one over the stock junk!
I didnt do my EGR delete so cant tell you much on that, either way you will be taking the turbo out so get a gasket & O ring kit for it, I cleaned my turbo as well while it was out pretty easy to do.
If you have an '05 up (sorry forgot what you had) you may want to consider getting the kit to upgrade the STC fitting on the HPOP, I have less than 50mi since Y pipe replacement and I have HPOP leak
so one of these weekends back in I go
The mechanic that put my EGR delete in used a new coolant pipe (specially made with fittings) tossed the EGR cooler and blocked the outlet on the Y Pipe.
I would say the Y pipe job would take about a day, took me longer cause I clean stuff and paint crap, a little OCD I guess.
I sent a PM to another member on the process I did for the Y pipe if you want I could forward it to you check out.