Pismo6x6? Do I have a fellow 6x6r nearby? A fellow dirt bike rider Howie was tuning up a really nice 500 at his shop and had me come over for a couple questions because he knew I had one, yours?. Not many around these parts.
I used 1 5/8 on both my Attexs, the only size not in stock usually. I believe on my 400 I wrapped pipe with a layer of DEI then slid flex over that to make a tighter fit and it seals nicely. I can measure OD if that helps when I get home.
Welcome
ST400R ATTEX(Smiley)
500 Super Chief
I love the smell of Blendzall in the morning