needs nothing, great on gas - 2009 Chevrolet Cobalt 4dr Sdn LT w/1LT - Power Windows, Power Door Locks, Tilt Wheel, Tire-Pressure Monitoring System, AM/FM Stereo, CD Player, Additional Power Outlet(s), Air Conditioning, Bucket Seats, Seat-Lumbar-Driver, Seat-Rear Pass-Through, Cloth Seats, Mirrors-Pwr Driver, Mirrors-Pwr Passenger, Mirrors-Vanity-Passenger, Wheels-Steel, Wheels-Wheel Covers, Headlights-Auto-Off, Headlights-Auto-On, Air Bag - Driver, Air Bag - Passenger, Air Bag On/Off Switch - Passenger, Air Bags - Head, Air Bag-Side-Head only-Rear, Power Steering, Front Disc Brakes, Front Wheel Drive, Child Safety Locks, Intermittent Wipers, Wipers-Variable Speed Intermittent, Rear Defrost, Trunk-Emergency Release, Daytime Running Lights