flowmaster part numbers

[xsive11]

I'm getting ready to have an system installed but I'm not sure with which parts to use. After a lot of searching on this board and calling flowmaster, I've decided to go with the FM y-pipe and 70 series. It looks like the factory muffler has a left side inlet.
So will I need the FM #530712 (3"in offset/2.5"dual out)
or #530702 (3"in center/2.5"dual out)
or #530722 (3"in center/2.25"dual out?)
The Y-pipe that FM says they have is #Y250300A (2.25" from headers to 3" at the collector.) Is this the correct one?
I plan on using 3.5" SS rolled edge tips.

[Cajun]

Just finished mine today. Wonderful improvement....
DT

[xsive11]

do you still have any of the boxes/packaging with part numbers on them so i know that im getting the right stuff? what im reall concerned about is the y-pipe b/c FM didnt know which would fit the Titan.

[xsive11]

anyone, anyone?

[Sammy Sandbag]

Yes, 2.25" input on the Y with the offset muffler, not centered. If you go with the centered, your installer could always put a couple bends in the pipe to get it inline.