My exhuast plan - input on muffler fitment..

[Kastley85891]

Any comments...
I am currently on yet 'another' exhuast project, I am keeping cost down and want a full, header back system for <900 dollars that gives low down grunt and a good growl.
So far it goes like this....

Motordyne ART pipes (at my house waiting my xmas return)
2.5 to 3 in generic Y pipe
Stock mid pipe (its a piece of pipe after all....)

Muffler - I was considering 'making these fit... any of you guys have any input as to how far off they will be? they are designed for a G37.
I do have access to cutting and welding tools, if they are gonna be close I will jump and erm,, 'adjust' as needed. and off course report back.



Any input appreciated.

Happy and safe holidays
K