In my opinion, I've always habe the mindset of " I won't ever sell my car blah blah blah" and now, I want to sell it for than Evo X. I have some stock part but now all due to the fact that I sold them. Depending on your price, people do look for stock parts believe it, or not it just takes time.
My stock catback was listed for $100 and a guy who was parting out his car had an FI Exhaust and we a trade with $600 on my side.
My OEM intakes was listed for $100 and had few bites but decided to keep it for future purposes.
My OEM sport spoiler sold for $50 ( It had a crack in it so thats why it was so cheap ) and eBay sells a rep one for like $150 shipped and painted so I was ball parking my price
My front and rear and radio was sold to a guy for his Kennwood headunit
Parts come and go. You just gotta be patience with it.