correct exhaust tips for 1970 Swinger 340

Mark2205 said

http://ep.yimg.com/ca/I/yhst-94630709418867_2271_201892066 Try this link

Click to expand...

I understand those look like the ones but I am not convinced they are 100% correct for a 1970 Swinger 340.
who sells the one in the link you posted?