high flow cats or resonators?

[infinitiboyj30]

im gonna remove my stock cats,stock resonators,mid mufflers,and muffler on back on my j30 and put either 2 high flow cats or 2 resonators with a y-pipe connected to them goin str8 back to a megan racing muffler with a 2.5 inlet what do u think? should i do 2.5" threw the whole thing or 2.25?
Modified by infinitiboyj30 at 8:34 PM 2/9/2009

[maxnix]

I think you should download and read the FSM first.

Then read Carlos' site on general maintenance and repairs.

Then you should read all the prevous posts on this Forum and in Infiniti General and IOM.

I guarantee after you do you won't be trashing your catalytic convertors.

Make your cash outlays count by correcting deferred maintenance first.

Then post.