Update:
The small resonators do a medium job at reducing rasp, but in Sport modes at heavy pedal it's still there's above 3.5K. It can't be helped. I have the huge AA Signature cat-alltheway-back single 3.5in bus exhaust, and the ARM pipes sound gets amplified through there. More "gruuuunt" down low, and the exhaust rumble/thunder is louder too. Now I've got that Cheby Big Block V8 sound off the line...but then she wickedly screams Ricey Inline 6. Will try to get a sound clip.
Update2: lots of things in the car rattle or buzz now. I guess catless needs a couple resonators along the way. Maybe better with a single mid and the resonated extensions too...