Two of these clamps per side should take care of it.
42MM (1.615") Headers should be 1 5/8" or 1.625"
https://www.europaparts.com/exhaust-...91253141a.html
or 45mm (1.77") for the sidepipe slipover area to header primarys
https://www.eeuroparts.com/Parts/378...mp-45mm-45X95/
Don't know which one will work for your setup.