I have a used arkym rear diffuser made for f10 535 dual tips NOT QUADS. I bought this diffuser a few weeks back and never installed it, I've decided to get quads there for these are up for sale.
I prefer local pick up in the tristate area, but will ship. These retail for 1,000$+
I am asking 650$
will post pics later on tonight. thanks for looking
Also accepting trades for a quad diffuser.