$120 Picked up will fit any 10-12 gt no modifications needed,just needs paint no hardware included.
http://www.cervinis.com/10-12mustang-gt-cs-chin-spoiler-combo.html
Single piece design (no drilling!)
• Durable Poly Urethane construction
• Optional Ford Fog lights and wiring harness
• Textured matte black finish
• Mounts to all Factory Ford locations
• Fits GT, GT/CS, and BOSS 302
http://www.cervinis.com/10-12mustang-gt-cs-chin-spoiler-combo.html
Single piece design (no drilling!)
• Durable Poly Urethane construction
• Optional Ford Fog lights and wiring harness
• Textured matte black finish
• Mounts to all Factory Ford locations
• Fits GT, GT/CS, and BOSS 302