Thanks everyone. I'll keep the original and swap out with Magnaflow 16871 Stainless Steel 2.5" Single Cat-Back Exhaust System, so I can go back wen needed.
Will modify further from there, probably Flowmaster Super 44 in the front, then 2 straight pipes in the back.
Already have K&N 77-2583KS Air Intake that really nicely opens up engine sound, so really looking to get that rumble at low RPMs like these:
https://www.youtube.com/embed/EZtOvuDqGy0
https://www.youtube.com/embed/qj_jEtkIACM
(sorry, these are Dodge vids, but represent what I'd like to achieve)
Plan to try first option end of month, and will post some vids then.
Already have K&N 77-2583KS Air Intake, so really looking to get rumble at low RPMs like these: