I don't know of any manufacturer off hand that offers their exhausts to come out the back at an angle for the teggy's. The only one's that I've seen are custom jobs taken to a muffler shop and had piping made to get that look.

Hopefully someone here could help you in letting you know if there is an exhaust that has piping that specifically does what you're looking for.

I do know for a fact that the Racing Medallion by Tanabe comes straight out and not at an angle.