2003 Subaru WRX Ignition Parts

Subaru WRX Ignition - 2003
  • TRQ® - Ignition Kit
    Save 6%
    TRQ®Ignition Kit
    1
    # mpn4993007168
    Subaru WRX / WRX STI 2003, Ignition Kit by TRQ®. If you want to keep your vehicle running like new, this high-quality product will help you fix the ignition-related problems. Made from durable materials and in compliance with strict...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $142.83
    $151.95Save $9.12 (6%)
  • NGK® - Laser Iridium™ Spark Plug
    NGK®Laser Iridium™ Spark Plug
    15
    # 4732318822
    Subaru WRX / WRX STI 2003, Laser Iridium™ Spark Plug by NGK®. Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity. Iridium tip is six (6) times harder than...
    $12.60
  • Denso® - Iridium TT™ Cold Type Spark Plug
    Denso®Iridium TT™ Cold Type Spark Plug
    2
    # 3845790347
    Subaru WRX Base 2003, Iridium TT™ Cold Type Spark Plug by Denso®. Ultimate Endurance and Power. 0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology. Make your vehicle faster and more powerful with premium-quality performance fuel...
    $8.17
  • NGK® - Ignition Coil
    NGK®Ignition Coil
    6
    # 3666208962
    Subaru WRX / WRX STI with Distributorless Ignition 2003, Ignition Coil by NGK®. In our online store you can get this superior replacement product and take advantage of its impeccable design. Carefully engineered to OE specifications, it...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $79.18
  • NGK® - HX™ Ruthenium Spark Plug
    NGK®HX™ Ruthenium Spark Plug
    5
    # 4543175505
    Subaru WRX / WRX STI 2003, HX™ Ruthenium Spark Plug by NGK®. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket NGK Ruthenium HX™. The ultimate high ignitability spark...
    $11.40
  • TRQ® - Ignition Coil Set
    Save up to 6%
    TRQ®Ignition Coil Set
    10
    # 4480247027
    Subaru WRX Base 2003, Ignition Coil Set by TRQ®. If you've had any symptoms of a failing ignition coil such as starting issues or poor fuel economy, get this top-grade product to fix these problems. Built to meet the OEM specifications,...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $109.56 - $128.73
    $112.95 - $136.95Save up to 6%
  • Delphi® - Ignition Coil
    Delphi®Ignition Coil
    2
    # 3666364299
    Subaru WRX / WRX STI 2003, Ignition Coil by Delphi®. Delphi OE technology ignition products are validated to match the vehicles system. OE quality replacement parts for the right fit, form and function. Designed utilizing the latest...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $58.36
  • Denso® - Cold Type Iridium Long-Life Spark Plug
    Denso®Cold Type Iridium Long-Life Spark Plug
    3
    # 2771249207
    Subaru WRX Base 2003, Cold Type Iridium Long-Life Spark Plug by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum,...
    $9.28
  • TRQ® - Iridium Spark Plug Set
    Save 3%
    TRQ®Iridium Spark Plug Set
    8
    # mpn4842124323
    Subaru WRX / WRX STI 2003, Iridium Spark Plug Set by TRQ®. This top-notch TRQ spark plug set is made to fix spark plug problems easily. With its help, you will restore your vehicle's quick starting. Plus, installing it is a simple task.
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $39.72
    $40.95Save $1.23 (3%)
  • TRQ® - Ignition Coil Kit
    Save 7%
    TRQ®Ignition Coil Kit
    1
    # 4480182598
    Subaru WRX Base 2003, Ignition Coil Kit by TRQ®. If you want to keep your vehicle running like new, this high-quality product will help you fix the ignition-related problems. Made from durable materials and in compliance with strict...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $124.57
    $133.95Save 7%
  • TRQ® - Ignition Coil
    Save 3%
    TRQ®Ignition Coil
    0
    # 4480079595
    Subaru WRX Base 2003, Ignition Coil by TRQ®. If you want to restore the performance of your vehicle’s ignition system, go with this top-notch product. Developed to ensure the OE-grade quality at a competitive price, this ignition coil...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $34.87 - $37.78
    $35.95 - $38.95Save 3%
  • ACDelco® - Gold™ Rapidfire Platinum Spark Plug
    ACDelco®Gold™ Rapidfire Platinum Spark Plug
    0
    # 5144065477
    Subaru WRX / WRX STI 2003, Gold™ Rapidfire Platinum Spark Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $5.52
  • Denso® - Iridium Power™ Cold Type Spark Plug
    Denso®Iridium Power™ Cold Type Spark Plug
    2
    # 3446052239
    Subaru WRX Base 2003, Iridium Power™ Cold Type Spark Plug by Denso®. Iridium Ultimate Endurance and Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology) & Tapered...
    $5.51
  • ACDelco® - GM Original Equipment™ Conventional Nickel Spark Plug
    ACDelco®GM Original Equipment™ Conventional Nickel Spark Plug
    1
    # 3665310510
    Subaru WRX / WRX STI 2003, GM Original Equipment™ Conventional Nickel Spark Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $2.72
  • Champion® - Copper Plus Spark Plug
    Champion®Copper Plus Spark Plug
    0
    # 3665339280
    Subaru WRX / WRX STI 2003, Copper Plus Spark Plug by Champion®. Built with nickel alloy center and ground electrodes, these spark plugs provide extra durability for long-lasting service life, while the extrusion of copper into the core...
    Copper Plus - Dependable Performance.Copper core center electrode allows for accurate control of heat range for longer life
    $2.11
  • Standard® - Intermotor™ Ignition Coil
    Standard®Intermotor™ Ignition Coil
    3
    # 3666330473
    Subaru WRX / WRX STI with 12 Volt System 2003, Intermotor™ Ignition Coil by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $49.58
  • Walker Products® - Ignition Coil
    Walker Products®Ignition Coil
    0
    # 3666360495
    Subaru WRX / WRX STI with Distributorless Ignition 2003, Ignition Coil by Walker Products®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $45.74
  • Denso® - Original U-Groove Nickel Spark Plug
    Denso®Original U-Groove Nickel Spark Plug
    0
    # 3845400748
    Subaru WRX Base 2003, Original U-Groove Nickel Spark Plug by Denso®. OE Recommended Resistor Plug with Patented U-Groove Design. If you want to restore the original performance of your vehicle's ignition system, this product is what you...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $2.13
  • Karlyn STI® - Ignition Coil
    Karlyn STI®Ignition Coil
    3
    # 3666381384
    Subaru WRX Base 2003, Ignition Coil by Karlyn STI®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...
    Consistent high voltage output for optimum performanceState of the art epoxy injecting procedure eliminate air pockets
    $38.57
  • Denso® - Platinum TT™ Spark Plug
    Denso®Platinum TT™ Spark Plug
    1
    # 2771286346
    Subaru WRX / WRX STI 2003, Platinum TT™ Spark Plug by Denso®. Unlock the performance of your engine and improve the operation of your ignition system with this quality product. Precision engineered in compliance with rigorous industry...
    $3.78
  • Beck Arnley® - Ignition Coil
    Beck Arnley®Ignition Coil
    0
    # 3666173854
    Subaru WRX Base 2003, Ignition Coil by Beck Arnley®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...
    Provides excellent starting connectionEngineered from premium materials
    $51.71
  • NGK® - Nickel Spark Plug
    NGK®Nickel Spark Plug
    0
    # 3665282325
    Subaru WRX / WRX STI 2003, Nickel Spark Plug by NGK®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $2.46
  • Denso® - Double Platinum Spark Plug
    Denso®Double Platinum Spark Plug
    3
    # 3845686914
    Subaru WRX Base 2003, Double Platinum Spark Plug by Denso®. Extra Long Life Double Platinum Plug with Platinum Ground Strap. Denso Double Platinum plug features platinum on both the center and ground electrodes. This precious metal...
    $8.29
  • ACDelco® - Gold™ Double Platinum Spark Plug
    ACDelco®Gold™ Double Platinum Spark Plug
    0
    # 5143968913
    Subaru WRX / WRX STI 2003, Gold™ Double Platinum Spark Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $7.03
  • SKP® - Spark Plug
    SKP®Spark Plug
    1
    # 3845355809
    Subaru WRX / WRX STI 2003, Spark Plug by SKP®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $4.11
  • Autolite® - XP™ Iridium Spark Plugs
    Autolite®XP™ Iridium Spark Plugs
    2
    # 3446053421
    Subaru WRX / WRX STI 2003, XP™ Iridium Spark Plugs by Autolite®. With Resistor. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking...
    $4.70
  • TRQ® - Ignition Knock Sensor
    Save 3%
    TRQ®Ignition Knock Sensor
    0
    # mpn5019504021
    Subaru WRX / WRX STI 2003, Ignition Knock Sensor by TRQ®. Don't wait and replace your faulty ignition knock (detonation) sensor that’s your first line of alert in the event of your engine is experiencing detonation problems. This...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $34.87
    $35.95Save $1.08 (3%)
  • Standard® - Intermotor™ Ignition Knock Sensor
    Standard®Intermotor™ Ignition Knock Sensor
    1
    # mpn53663521
    Subaru WRX / WRX STI 2003, Intermotor™ Ignition Knock Sensor by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $49.73
  • Mpulse® - Ignition Knock Detonation Sensor
    Mpulse®Ignition Knock Detonation Sensor
    0
    # mpn5105668960
    Subaru WRX / WRX STI 2003, Ignition Knock Detonation Sensor by Mpulse®. The Knock Sensor can detect mechanical stress and generates a voltage when the vehicle knocks or pings. Under heavy acceleration, it sends signals to the ECU and...
    Designed and fully tested to ensure voltage that meets OE specs for ideal performanceProtect engine from damaging detonation and pinging in all types of driving conditions
    $75.70
  • Standard® - Intermotor™ Ignition Coil Connector
    Standard®Intermotor™ Ignition Coil Connector
    0
    # 5236733001
    Subaru WRX / WRX STI 2003, Intermotor™ Ignition Coil Connector by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications,...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $18.49




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2003 Subaru WRX Ignition Reviews

2 reviews
Worked well for a few months, then started to fail. Expected more durability.
Posted by Jason (San Diego, CA) / June 18, 20242004 Subaru WRX
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