2003 MERCURY GRAND MARQUIS Performance Parts

    • Position: Rear
    • Pad Material: Ceramic
    • Quantity: Sold as a set
    • FMSI: D932

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS

    $148.87
  1. Key Features:
    • Super Coil
    • Modular
    • 2 Valve Direct Fire
    • Primary Resistance 0.66 ohms
    • Secondary Resistance 6.1K ohms
    • Turn Ratio 61:1
    • Max. Voltage 26KV
    • Each

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

  2. Key Features:
    • Super Coil Set
    • Modular
    • 2 Valve Direct Fire
    • Primary Resistance 0.66 ohms
    • Secondary Resistance 6.1K ohms
    • Turn Ratio 61:1
    • Max. Voltage 26KV
    • Set Of 8

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

    $259.95
  3. Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8

  4. JET EZ-Tune Programmers presents you with proven and economical performance programming, allowing you to tune your engine without making any changes to your transmission shifting, shift points, and speed/rev limiters! The programmers are essentially a scan tool which is able to read and clear diagnostic trouble codes, yet comes with the Tri-Power tuning of full version programming modules for regular, mid-grade, or premium fuel. The units are also upgradeable to a full-performance version. Free shipping to all of USA!

    Key Features:
    • EZ-Tune Programmer

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS

    $262.46
  5. Key Features:
    • Pro GUARD D2 Oil Filter
    • Heavy Duty Canister
    • Built In 3/8in. Nut/Ratchet Drive
    • Heavy Duty Coil Spring
    • Wire Backed Media
    • Center Tube

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

  6. Key Features:
    • Magnum FLOW Pro 5R OE Replacement Air Filter
    • Polyurethane Frame
    • Washable And Reusable
    • Bump Seal Design
    • Rounded Open Pleats

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

    • Product Style: Oil Filters
    • Style: Canister
    • Anti-Drain Back Valve: Yes
    • Bypass Valve: Yes
    • Filter Material: High Flow Premium Media
    • Gasket Material: Nitrile Rubber
    • Outside Diameter: 3.656 in (93 mm)
    • Thread Specification: M22 Special Thread x 1.5

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

    • Series: OEM Grade
    • Material: Stainless
    • Carb Compliant: No
    • Converter Configuration: Direct-Fit
    • Overall Length: 37"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Exhaust Pipe Material: Stainless Steel
    • Exhaust Component Mount Type: Uses Factory Hangers
    • Components: 1 Gasket

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS / 4.6L V8 GAS

    $449.00
    • Series: OEM Grade
    • Material: Stainless
    • Carb Compliant: No
    • Converter Configuration: Direct-Fit
    • Overall Length: 37"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Exhaust Pipe Material: Stainless Steel
    • Exhaust Component Mount Type: Uses Factory Hangers
    • Components: 1 Gasket

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS / 4.6L V8 GAS

    $445.00
    • Series: OEM Grade
    • Material: Stainless
    • Carb Compliant: No
    • Converter Configuration: Universal
    • Main Piping Diameter: 2.25"
    • Inlet Diameter: 2.25"
    • Outlet Diameter: 2.25"
    • Body Length: 9"
    • Body Width: 4.25"
    • Overall Length: 13"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Air Tube Adapter: Not Adaptable
    • O2 Sensor Location: N/A

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS / 2.25" / 2.25"

    $194.00
    • Series: OEM Grade
    • Material: Stainless
    • Carb Compliant: No
    • Converter Configuration: Universal
    • Main Piping Diameter: 2.25"
    • Inlet Diameter: 2.25"
    • Outlet Diameter: 2.25"
    • Body Length: 7.75"
    • Body Width: 5.5"
    • Overall Length: 11.5"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Air Tube Adapter: Not Adaptable
    • O2 Sensor Location: N/A

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS / 2.25" / 2.25"

    $178.00
    • Position: Front
    • Rotor Construction: Vented 1-Piece
    • Rotor Style: Slotted
    • Rotor Diameter: 12"
    • Quantity: Sold as a set

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS

    $332.83
    • Position: Rear
    • Pad Material: Organic
    • Quantity: Sold as a set
    • FMSI: D932

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS

    • Position: Front
    • Pad Material: Organic
    • Quantity: Sold as a set
    • FMSI: D931

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS

    • Series: California
    • Material: Stainless
    • Carb Compliant: Yes
    • Converter Configuration: Universal
    • Main Piping Diameter: 2"
    • Body Shape: Oval
    • Inlet/Outlet Position: Center/Center
    • Inlet Diameter: 2"
    • Outlet Diameter: 2"
    • Body Length: 9"
    • Body Width: 5.5"
    • Overall Length: 13"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Air Tube Adapter: Not Adaptable
    • O2 Sensor Location: N/A

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS / 2.00" / 2.00"

    $373.00
    • Series: California
    • Material: Stainless
    • Carb Compliant: Yes
    • Converter Configuration: Direct-Fit
    • Main Piping Diameter: 2.25"
    • Inlet Diameter: 2.25"
    • Outlet Diameter: 2.25"
    • Exhaust Inlet Connection Type: Bolt-On
    • Exhaust Outlet Connection Type: Bolt-On
    • Body Length: 7.75"
    • Body Width: 6"
    • Overall Length: 34.6"
    • Body Material: Stainless
    • Catalytic Converter Format: Pre-Catalytic Converter And Main Catalytic Converter
    • Catalytic Converter Substrate Material: Ceramic
    • Catalytic Converter Body Material: Stainless
    • Exhaust Pipe Material: Stainless Steel
    • Air Tube Adapter: Not Adaptable
    • O2 Sensor Location: Pre And Post Converter
    • Exhaust Component Mount Type: Uses Factory Hangers
    • Components: 1 Gasket

    Fitment:

    2003 MERCURY GRAND MARQUIS GS, LS, LSE / 4.6L V8 GAS / 2.25" / 2.25"

    $1,171.00
  7. Key Features:
    • 8.8 in. Ring And Pinion Set
    • 3.55 Ratio

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

    $259.24
  8. Key Features:
    • 8.8 in. Ring And Pinion Set
    • 3.31 Ratio

    Fitment:

    2003 MERCURY GRAND MARQUIS 4.6L V8 GAS

    $258.81
  9. KYB Gas-a-Just Shocks and Struts use higher gas pressure to keep your tires glued to the road. Their monotube configuration eliminates aeration and foaming, their micro-smooth, hard-chromed pistons extend their life, and their seamless cylinders and eyerings completely eliminate seam failures. Free shipping to all of USA!

    Fitment:

    2003 MERCURY GRAND MARQUIS ALL / Rear Wheel Drive