i wish mine was like that. best thing to do with that is the o2s pick up nothing to do with the catalyst in the exhuast is all about which side is lean or working harder or so on and so on (they even everything out). so cut them off hollow out (or take shell) and weld them on to a straight pipe on each side. so then u pass inspections cause they will look and see that they are there. and u get nothing holding up your flow. i have hook ups where im going to pass inspections but just in case i will resort to welding shells up on each side of mine and clearing my ce light. got to always have a back up plan. and with the single pipe back 3 inches should be great if u got ground clearence which should not be a prob. there is room for dual a good exhuast place will find room and be proud to take the challenge on.