here is a soundclip/video of a civic with a flowmaster axleback system so im assuming its the 60 series muffler cuz that the only system they make for the civc but gives yall a idea od what my EP3 sounded like...dont sound like a bee or farty sounding or nothing even while just revving and of course any muffler sounds better while actually driving...im suppose to be receiving 2 free 40 series mufflers from a unlikely source...heres the clip....

civic w/ flowmaster axleback
Video - civic w/ Flowmaster axleback.. NA

i think the 40 series will sound even deeper/throatier than the 60 series on my civic...at least it should...only time will tell

also im thinkin about putting bigger piping...maybe 2.5" from the rear flange to the muffler and then when i put on the glass pack putting on 2.25" from the cat to the resonator then to the rear flange.....