I had a GHL axleback setup on my vette and really like the sound, so I'm looking at GHL again for my 2SS M6. I need some input on what the difference is between an axle back vs an axle back w/o mufflers. (besides the obvious.. one has no mufflers

). What would the sound difference be w/o mullfers? Also would there be more popping on deceleration w/o mufflers? I'm leaning towards the catback setup, but still want to perform due diligence on the axle backs.
As always, thanks for the input.
These are the setups I'm considering:
1.
GHL 3" True Dual Polished SS Catback Exhaust w/X Pipe and 4.25" Tips $999.00
2.
GHL Polished SS Axleback Exhaust w/mufflers and 4.25" Tips
$399.00
3.
GHL Polished SS Axleback Exhaust w/out mufflers and 4.25" Tips
$559.00