I didn'thave a way to trim the bottom so I just left it for later and I will angle it down ty.I have been using 1/4"20thread bolts on the current hanger(3/4" strap about 14" long) so I will use the same hole,bolt/nut nyloc.I have a 3 1/2" exh because my engine has a blower(8-71 700 to 1k hp when I want)Thank you for your input!I need to start putting my blower back on so I will be working on the exh as I go.