Thats a good deal. I bought a full Akra system from those guys for a ZRX a couple of years ago - they are reliable vendors. i "bulldogged" the can (shortened it by a few inches and re-riveted it), which many on the ZRXOA Forum were doing - it looked pretty good. Probbaly wouldnt look good on an RC though...
It's a great full system header exhaust option that's orphaned since the down pipes are NLA. I love the potential of this and if I had the money I'd be getting a hold of
(here, ebay, email) and arranging him to get these on my behalf and then building a ladybird slip on system for these headers. Simon has many exhaust can options and simply needs to develop the down pipes. That'd work nicely .