What is the benefit of replacing my ignition coils with Mishimoto's set?

Replacing worn ignition coils with this Mishimoto set can restore lost engine performance, improve startup times, and lead to a smoother idle. It ensures your LS engine is getting a strong, consistent spark.

Do I need to buy anything else to install these ignition coils?

While these coils are a direct replacement, it is highly recommended to install them with a new set of spark plugs for optimal performance and to ensure the entire ignition system is refreshed.

What is the warranty on these ignition coils?

These Mishimoto ignition coils are covered by Mishimoto's signature Lifetime Warranty, providing you with confidence in their durability and performance.

Mishimoto Ignition Coils Set of 8 MMIG-LSSQ-9908 - GM LS 199

Name: Mishimoto 99-07 GM Square Style Engine Ignition Coil Set
Brand: Mishimoto
Price: 418.76 USD
Availability: InStock

Mishimoto 99-07 GM Square Style Engine Ignition Coil Set

$418.76

In Stock

Mishimoto 99-07 GM Square Style Engine Ignition Coil Set. Restores performance and improves engine startup and idle.

Key Features

Fits 1999-2007 GM L-Series Truck Engines, including popular models like the Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and Hummer H2.
Designed and tested to meet or exceed OEM GM performance specifications.
Set includes 8 ignition coils for a complete replacement of your V8 engine's stock units.
Improves engine startup and idle quality.
Restores lost engine performance.
Backed by the Mishimoto Lifetime Warranty.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Mishimoto is known for making well-built cooling components, and they're bringing that same attention to detail to your LS engine's ignition system with this set of square-style ignition coils. If your 1999-2007 GM truck or SUV is feeling a bit sluggish, hesitating on startup, or just not running as smoothly as it used to, worn-out ignition coils could be the culprit. This set is designed to meet or exceed OEM GM performance standards, giving you a solid foundation for your engine's spark delivery.

Before you chase more horsepower, it's smart to make sure the basics are right. A weak spark from old coils can lead to misfires, rough idling, and even damage to your catalytic converter. Mishimoto's ignition coils are tested to bring your LS engine back to its intended performance level, often referred to as 'Stage 0.' When installed with new spark plugs, you can expect a noticeable improvement in how your engine starts, idles, and runs overall. This set includes 8 coils, perfect for a full replacement on your V8 engine.

These coils are a direct replacement for worn or defective factory units and are backed by Mishimoto's signature Lifetime Warranty, giving you peace of mind with your purchase.