How much are these backboxes worth?

[ecain63]

Following my H&S exhaust fitting I've got the stock backboxes from my E61 M5 in the shed and am trying to work out what to do with them. Do I keep them to refit at resale time or do I stick them up in the classifieds? Any value in them do you think?

[andye30m3]

If you've got the space to store them, I'd keep them and refit when you come to sell.

I doubt they'll add any value to the car and may even put people off.

[Quinten]

When I had my H&S fitted, I kept the original ones in the garage for a few months, but in the end, they went to the skip... I will never go back to standard

[Nedz]

When you come to sell put the standard ones back on and try and get a few quid by selling the H&S boxes.
To be honest i cant see anyone wanting to buy the standard system unless for some reason they have a problem with theirs and just want to replace with OE.

[ecain63]

Yeah, that was my thought guys. I think at resale time at least if I have the OEMs handy I can give people a choice.