3.5hp side popper exhaust help

What im thinking is a cast or billet "D" shaped 2 pc muffler like a go kart style Reed muffler 1/2"pipe back screws to the block the front bolts to that with a rear exhaust exit ....The seat was done by Rauls auto trim in Ontario Calif hes done some great work on vintage go karts and cars
i would check with jeff clark in the vendor section to see if
is willing to cast up a few side popper exhausts. i could use
on too. :thumbsup: