Bought some 40357 Pro XS Mufflers 2.25 in/out for my '99 GTP...

I feel like these will limit my upgrade-ability in the future/be to restrictive with all the mods I will be doing to the car...

Ported/Polished Heads
Port matched/Polished LIM
Ported/Polished blower
Headers
Cat Delete

Should I put the mufflers on and get a custom Cat-Back...will this limit me to 2.25 piping?

Just get a pre-assembled cat-back system?

Thanks yall!