Exhaust question (uk)

Hi guys so I’ve bought a new exhaust for my 360 coupe so looking to sell the old back box and cats (will proberbly list on here in the classifieds) but was going to list them on eBay also but I’ve no idea what there worth as there’s no other cats available, I know the back box isn’t worth a great deal proberbly couple hundred pound, so just wondering if anyones sold them recently to give me an idea, I’d rather sell to an owner than a scrap merchant and keep them in circulation as I’m sure parts are getting thin on the ground with the age of the cars now anyway, thanks ricky

 

Greedbay FVF are 13% for auto parts. Sell privately.

 

I’d much rather sell on here just not sure on value, maybe £500 each cat?