Manifold and silencer 1
In good nick, stainless pipes are heat discoloured but a bit of brillo pad brings them back to a good shine. Personally I like heat discoloration and don't have the patience to polish stuff, so I left them well alone!
Silencer is chrome - some surface rust from the jubilee clips used to hold the heatshield I was using shows up in the photos but this comes off very easily and it polishes up very nicely indeed. Made by Raego.
manifold and silencer 2
It's a 4-1 collector with 1.5" primaries and 2 1/2" secondary. Silencer exit is a 6" long 2" dia straight pipe as I was using a rear exit system, but this would be very easy to change for a curved side exit piece. I >think< it's a push-in fitment (it looks like it is), but seeing as it's not been moved for several years it may require more than a gentle tug to remove it as it appears to be reluctant at present!
manifold and silencer 3
Sounds nice - loud, but not too loud (passed the noise test at Brands last year).
£100. Collect it and I'll throw in a nice cup of tea, otherwise Royal Mail will relieve me (and hence you!) of an extra £20 to post it.