Mishimoto Ignition Coil Set of 4 Subaru STI 2011-2021 / WRX 2011-2014 | MMIG-STI-1104

Fitment: This set of ignition coils is designed for 2011 - 2021 Subaru STI and 2011 - 2014 Subaru WRX. Features: Mishimoto's high - quality replacement ignition coils are a game - changer. They enhance engine startup and idle, and bring back your Subaru's peak performance, meeting or exceeding OEM specs. Sold as a set of 4, these coils refresh the ignition system, providing a strong spark for both stock and modified vehicles. The durable rubber boot keeps moisture, oil, and debris at bay. The high - quality phenolic resin outer shell stands up well to high temperatures. Pre - lubricated boots with dielectric grease offer excellent corrosion resistance. And with Mishimoto's Lifetime Warranty, you're in safe hands.

Using these ignition coils is straightforward. First, make sure your engine is off and cooled down. Then, carefully remove the old ignition coils one by one and replace them with these new Mishimoto coils. Be gentle when handling the rubber boots to avoid damage. As for maintenance, there's not much you need to do. Just keep an eye on the overall condition of the ignition system. If you notice any issues like rough idling or poor engine performance, check the coils. If they get dirty, you can use a clean, dry cloth to wipe them. Remember, these coils come with a lifetime warranty, so if something goes wrong, you can always reach out to Mishimoto for support.