I wish I could find some good pictures of them installed on a bike but It's tough to search for a header that's not common...
Here you go mate, here's my set on my K1, taken 5 or 6 years ago, with my mate Andre sitting on it. I built the K1 from a collection of unrelated parts I'd scored on EBay, at swap meets etc over a few years, and I got bored one weekend and built the bike from whatever was lying around in my garage.
I bought those pipes new in 1980 for my first K1, (60 bucks back then) and loaned them to another mate, eventually rescuing them from behind his garage where they'd been hanging over his back fence for the last 10 years or so of their life. They're getting a bit tatty now, so I should probably have them re-chromed, or maybe ceramic coated. Cheers, Terry.