I just sold my car, witch was very similar to yours. I had a 2008 sport hatch with 70,000 miles. I had quite a few mods, but put as much back to stock as I could. I left the aftermarket intake, suspension and a few cosmetic mods on. I got $7,000 for it. I might have gotten a higher price if it had not been in an accident a few years back where an airbag was deployed.
Good luck with your sale!