• Mishimoto 2011+ Subaru WRX STI Single Ignition Coil
  • Mishimoto 2011+ Subaru WRX STI Single Ignition Coil
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Mishimoto Single Ignition Coil | Subaru WRX/STI (11+) (MMIG-STI-11)

Mishimoto Single Ignition Coil | Subaru WRX/STI (11+) (MMIG-STI-11)

MMIG-STI-11

In stock

$64.95 USD
$71.00 USD $64.95 USD
Special Discounts May Apply at Checkout Sold out

The Mishimoto 2011+ Subaru WRX STI Single Ignition Coil is a high-quality replacement designed to restore reliable spark and support proper engine operation. Weak ignition can cause misfires under heavy load or spark blow-out at high boost, so refreshing worn coils helps prepare the engine before performance modifications. Designed and tested to meet or exceed OEM Subaru performance standards, the coil features a robust phenolic resin frame for durability in high-temperature environments. Its precision lower boot helps keep moisture out of the spark plug well, while pre-applied dielectric grease helps prevent corrosion and maintain a sound electrical connection. When installed with new spark plugs, it can help improve startup, smooth idle, and restore performance. The coil is backed by Mishimoto’s Lifetime Warranty.

Designed for the 2011 and newer Subaru WRX STI, this single ignition coil is intended as a replacement for a worn or defective factory coil. The source identifies the application as a Subaru flat-four with an EJ engine, but does not specify an exact engine code or chassis designation. It is suited to restoring ignition performance for regular driving and high-load or high-boost use; no separate street or track application is specified. Mishimoto offers these coils individually or in sets of four, and this product is the single-coil option. The description recommends installation alongside a set of new spark plugs for a refreshed ignition system, but does not provide specific installation instructions or state whether additional hardware is included. Verify vehicle compatibility before purchase.

Overview

The basic requirements for a properly running engine are fuel, air, compression, and spark. Before cranking up the boost in your flat four, it is wise to ensure all maintenance is up to date and these processes are performing as intended. Weak spark from your ignition system can result in misfiring under high load driving, and spark blow-out under high boost, which is bad for performance. Mishimoto is proud to launch our new lineup of ignition coils, aimed at providing a high-quality replacement that can bring your vehicle up to Stage 0 before moving on to horsepower adding modifications. Our ignition coils are designed and tested to meet or exceed OEM Subaru performance standards and are available as a single coil or in sets of four. Once installed with a set of new spark plugs, one can expect a refreshed ignition system with improved engine startup, a smoother idle, and restored performance from your EJ. The primary frame of our coils is constructed from extremely robust phenolic resin, ensuring optimal longevity in high temperature environments. The precision lower boot provides a barrier against moisture entry into the plug well, eliminating chances for spark plug contamination. In addition, our coils are pre-lubricated with dielectric grease to prevent corrosion and ensure an optimal connection between the spark plug and coil. Mishimoto ignition coils are an ideal replacement for worn or defective factory coils. As with all our products, these ignition coils include our signature Mishimoto Lifetime Warranty.

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