Exhaust cans

[kwik man]

I have made my own stainless steel dual exhaust header starting from
the head. It starts with 1 3/8 ss tube it makes a 45 dreg bend then a 1 ????
Ss Tube slips over it. Then a 1 5/8 ss tube 45 degree bends slides over
The 1 ???? ss tube there it a 1 ???? that slides on and 2 inch it clears the shock
Gas tank when I get the can I will send it to timbo to see what kind of hp
It will make.
I will post some pic next week