Kerker for an 85/86 R?

[200x newby]

Anybody ever run a Kerker pipe on their R? Whats the closest pipe to compare to it, DG? Does this look like a Kerker? Guy has it for sale and thinking about picking it up.

[christph]

Are you sure it is a Kerker pipe? I thought they just made pipes for 4 strokes.

[200x newby]

I'm not that's why I'm asking. If it's no better than a DG I have no intrest in it. Comes with an answer silencer.