I have the bosal as well...it's pretty loud, too loud for my tastes.  It sounds really nice though.  Slightly better with the silencers and I would definitely recommend them.  If you get them, put them in the mufflers before you put the catback on your car...the universal tips are a pain to get off the car once it's mounted.  
IMO, the middle section (resonator) hangs pretty low too. Make sure you get shorter exhaust hangers as well, I ended up putting a nice dent in my resonator this summer when one of my hangers wore out :blackeye: :crazy:
				
			IMO, the middle section (resonator) hangs pretty low too. Make sure you get shorter exhaust hangers as well, I ended up putting a nice dent in my resonator this summer when one of my hangers wore out :blackeye: :crazy: