I've got a92 hatch with a b16 and a dc 4-2-1 header.I am going to order the apex ws cat back.Here is my question,On the vx the cat is inbetween the header and the downpipe,on the B it is after the header behind the motor.With this combo am I going to have to get a cat or will the cat back bolt up to the header?Does anyone have this combo,or know the length that i'm gonna have to fill if it doesn't.