WTB 3.5cc outboard tuned pipe

[hyperparasite]

Hi Folks,

I'm looking for a tuned pipe to fit my K&B .21 outboard. I'd prefer Irwin, but will consider Silver Bullet, etc.

I did see the recent post about Jim Irwin and am close to calling him to see if I can still get one directly from him, but thought I would try posting this first...