It definately is louder with nothing in, but its not as boomy (Used to drone on motorways). I actually prefer it.
The back end is a little light in the bends, but with a decent setup, it handles like a dream. It handles good now, just cant wait to brace it all up.
I cant see there being a problem with the fabrication of the b-pillar. As far as im aware, the bpillar in the EK/EG's bolt on to the seat belt rail bolts and sits close to the rear bench (on the floor). If you were to get it done, i definately want one :lol:
I will tidy mine up abit, just need to get the rest of the sound deadning out and paint it all up.
The car seems to pick up better with no weight in the boot, can feel it pull better out of the bends. I first took mine out a year and a half a go, god knows where my rear seats are now, they never go in :lol: