So a friend's friend of mine wants to buy my type-C spoiler off me, but I don't know what to price it cause I don't know how much they go for. I tried searching on here but no luck. I don't want to rip off the guy and vice versa, can anyone help me out?

 

just check out rexpeeds site and make an honest price

 

Rexspeed sells them for $189. I just bought one for my 8. Hope this helps.