O.P., to tell the truth, if I HAD to have exits in front of the tires, behind a set of under-chassis headers..... I'd exit them BOTH on the passenger side of the car. That's primarily for sound reasons. I want all eight cylinder sounds to blend, not half on one side, half on the other.
That's what I have, but not because I love the sound. An H-pipe might fix it, but it would be completely in the way.