A wide variety of performance upgrades are available for the 2003-2004 Mercury Marauder including engine, exhaust, suspension, brakes, wheels and tires. The sport sedan shares its 4.6 liter V8 engine block with the Ford Mustang and Crown Victoria among other models.
Comp Cams manufactures several parts designed to coax more power from the Marauder's cylinder heads including hydraulic roller camshafts, valve springs and valve spring retainers. Several companies make high performance drive belt pulleys for the engine including ACDelco and Continental Elite. The K&N 57 Series FIPK Generation II Air Intake System increases and cools the engine's incoming airflow. Stainless Works and Kooks offer exhaust manifolds, mufflers and exhaust pipes that improve power, appearance and the sound of the Mercury Marauder.
Suspension upgrades for the Marauder include the Monroe Gas-Magnum Severe Service Shock Absorber or the KYB Gas-a-Just Shock and Strut. Owners combine those with the Suncore Rear Coil Spring Conversion Kit to eliminate the factory air rear suspension while keeping the car at factory height and providing a smooth ride. For increased chassis support, Dorman offers an upgraded Rear Sway Bar.
The PowerStop 1-Click Street Warrior Z26 Drilled and Slotted Brake Kit delivers superior braking surface and cooling and also an attractive look, which owners often exhibit with large alloy wheels and high performance low-profile tires.