Description
The Mishimoto MMIG-WRX-04 is a coil-on-plug (COP) ignition coil engineered as a direct replacement for worn or defective factory Subaru coils. Built with a high-quality phenolic resin outer shell for durability in high-temperature environments, it’s designed and tested to meet or exceed OEM performance standards, giving your ignition system a genuine refresh rather than a generic aftermarket guess.
Fuel, air, compression, and spark are the foundation of a properly running engine, and a weak spark from a tired ignition coil can cause misfiring, rough idling, poor gas mileage, and even damage to your catalytic converter. This Mishimoto ignition coil is built to restore that missing spark, and when paired with a fresh set of spark plugs, drivers can expect improved engine startup, a smoother idle, and restored performance — whether the vehicle is bone stock or already modified. As one of Mishimoto’s core ignition parts, it’s a smart first step before chasing horsepower gains, ensuring the basics are dialed in before adding further modifications.
Vehicle Applications
The MMIG-WRX-04 is a specific-fit ignition coil covering the Subaru Impreza (including WRX and STI trims) from 2004-2010, along with the Subaru Forester from 2004-2010. It also fits the Subaru Baja from 2004-2006, and the Subaru Legacy and Subaru Outback from 2004-2009. Coverage spans engine codes EJ251, EJ253, EJ255, and EJ257, and chassis codes SG, SH, GD, GG, GE, GH, GR, GV, BL, and BP.
Features
- Coil-on-Plug (COP) design with electronic ignition type
- Designed and tested to meet or exceed OEM performance specifications
- Improves engine startup, idle, and restores performance
- Refreshes the ignition system, ensuring strong spark for stock and modified vehicles
- High-quality phenolic resin outer shell for longevity in high-temperature environments
- Standard replacement grade type for direct factory-style fitment
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMIG-WRX-04
- Length: 4.31 in
- Overall Height: 3.07 in
- Overall Length: 4.33 in
- Color: Black
- Terminal Type: Blade
- Connector Gender: Female
- Terminal Gender: Female
- Ignition Type: Electronic
- Coil Type: COP Coil
- Coil Wire Included: No
- Oil Filled: No
- Universal or Specific Fit: Specific
- Grade Type: Standard Replacement
- Engine Codes: EJ251, EJ253, EJ255, EJ257
- Chassis Codes: SG, SH, GD, GG, GE, GH, GR, GV, BL, BP
Frequently Asked Questions
Which vehicles does the Mishimoto MMIG-WRX-04 ignition coil fit?
This ignition coil is a specific fit for the Subaru Impreza (including WRX and STI trims) 2004-2010, Subaru Forester 2004-2010, Subaru Baja 2004-2006, Subaru Legacy 2004-2009, and Subaru Outback 2004-2009, covering engine codes EJ251, EJ253, EJ255, and EJ257.
Is this an OEM replacement or a performance upgrade coil?
It is listed as a Standard Replacement grade type, designed and tested to meet or exceed OEM performance specifications.
Does the coil come with a coil wire or spark plugs?
No, the coil wire is not included. Mishimoto recommends installing new spark plugs alongside the coil to fully refresh the ignition system.
What is the ignition coil’s outer shell made of?
It features a high-quality phenolic resin outer shell designed for longevity in high-temperature environments.
What warranty does Mishimoto offer on this ignition coil?
This Mishimoto ignition coil is backed by the Mishimoto Lifetime Warranty.
What type of ignition coil is this?
It is a Coil-on-Plug (COP) coil with an electronic ignition type, in black with a blade terminal type and female connector and terminal gender.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
