So through my wheelings and dealings and building a few Z's, I have acquired a few different exhaust configurations ... now I'm ready to put some time in on my own car and wanted to get some opinions or see if anyone has a preference.

what I have ...

OBX Long Tube Headers
Megan Racing Stainless Headers

TurboXS Test Pipes
SGP Test Pipes
Megan Y Pipe

Greddy EvoTT Cat Back
Custom 3" Single Exit HKS Muffler
HKS Rep Exhaust

Main question - will the EvoTT system work on a non-turbo set up?
It was set up as Greddy TT Kit with the SGP Test Pipes to the EvoTT exhaust. - Can I just choose one of my header sets & mount all this together?
I think I'd like to keep this set up if non FI allows it?

Based on the pieces that are there - are there any other recommendations?

thanks!