If I had to guess, it looks like a spoiler off a ZX2. Not too sure though.
Zetec Crew #73
ATX Faction #24
Mods: Volant CAI, 65mm TB, CFM Lower Mount, VF Passenger Mount, SVT Header, SVT Cat, SVT Flex, and Trubendz 2.5" exhaust, Roush Suspension, Tune and CarPC.