My car-
Exhaust type-- Bassani cat-back
Manifolds/Headers-- MSDS Stainless Headers
Y-pipe-- BAT/SHO
Main Cat-- High flow universal welded to the back of the BAT Y.
Resonator-- Big Magnaflow
Mufflers-- Bassani
Volume#--8-9
Very loud with quite a bit of drone between 40 and 60 MPH. On the highway, it starts getting pretty loud above 3400 RPM. It didn't seem to drone as much with the MSDS Y-pipe and stock cat that I had originally, and the tone was a little deeper and smoother. I did notice a slight power increase with the BAT Y-pipe over the MSDS.
Starjammir's car-
Exhaust type-- Bassani cat-back
Manifolds/Headers-- MSDS Headers
Y-pipe-- SHO Shop
Main Cat-- None
Resonator-- Magnaflow
Mufflers-- Bassani
Volume#--9-10
MUCH louder than mine at idle. Not nearly as smooth sounding either, but I think that they are about the same volume at full throttle. He has no cat and 3L valves in his hybrid.