My 98 Forester has a bad at, not sure if front or rear. I've been looking at exhausts, and I realized they are all cat-back.. In most terminology, "cat-back" does not actually include the cats, does it. In which case, I suppose I need to find an aftermarket header-back exhaust for a Forester, or one from another Subaru taht would work. Would a headerback for a 2.5RS fit mine? And if so, any hints on where to find one?