Reviewing 5 Best Ignition Coil For LS2 Options 2025

I remember the frustration when my LS2 started misfiring under load. Trying to squeeze every bit of horsepower out of that motor means every component has to be running optimally. After extensive testing, I quickly learned that upgrading the ignition system is crucial, especially when boosting or running high RPMs. If you’re searching for the best ignition coil for ls2 to eliminate those annoying drop-offs and improve throttle response, you’ve come to the right place. I’ve compiled a guide featuring five top-tier options based on performance and reliability so you can get maximum energy out of your LS engine.

IMAGE	PRODUCT NAME	AMAZON LINK
	8 GM 12573190 Ignition Coils For LS2 LS3 LS4 LS7…	View on Amazon
	8x ZZPerformance LS Square High Voltage Coil Packs GM Gen…	View on Amazon
	2Pcs Ignition Coil Wire Harness Connector Compatible with…	View on Amazon
	A-Team Performance – Ignition Coil – Compatible with…	View on Amazon
	Blemished GM 12558693 Ignition Coil For LS2, LS4, LS7…	View on Amazon

8 GM 12573190 Ignition Coils For LS2 LS3 LS4 LS7 Engines

If you prioritize OE reliability and factory fitment above all else, these GM 12573190 coils are an outstanding choice. These coils are the second design for the LS2/LS7 platforms and ensure you’re getting components built to the stringent standards of the original manufacturer. They provide reliable spark energy and require no PCM tuning changes, making them the ultimate plug-and-play solution for replacing aging stock coils or performing routine maintenance. They meet or exceed OEM specifications, giving you total peace of mind regarding longevity and consistency.

Key features that stand out:
– New Ignition Coil in Bulk. (Ships as a complete set for V8 engines)
– High quality materials (Designed to meet or exceed OEM specs)
– 100 percent tested (Ensures worry-free, out-of-the-box performance)
– Second Design Coils (Updated design for LS2/LS7 applications)

Pros:
– Guaranteed factory fit and function.
– Excellent longevity and stability under normal operating conditions.
– Requires no tuning adjustments after installation.

Cons:
– Not designed for extreme high-boost applications requiring massive spark energy.

Best for: LS2 owners seeking a reliable, direct replacement for stock coils without changing engine characteristics.

Expert Opinion: These coils are the benchmark for reliability. While they won’t offer a significant power increase over stock, they are arguably the best ignition coil for ls2 when OEM quality is the primary concern.

8x ZZPerformance LS Square High Voltage Coil Packs GM Gen IV LS2 LS3 LS4 LS7

When you start adding forced induction or heavily modding your LS2, you need more spark energy to prevent blowout under high cylinder pressure. ZZPerformance delivers exactly that with these high-voltage, square-style coil packs. These are built to provide a stronger, more consistent spark than most factory units, which helps maximize combustion efficiency and supports higher horsepower numbers. They are designed to directly replace the stock LSx square coils and offer enhanced reliability, especially for track day enthusiasts or drag racers.

Key features that stand out:
– High Voltage Output (Increased spark energy over stock)
– Square Style LSx ignition coils (Familiar and proven design)
– Direct fit for Gen IV LS engines (Simplifies installation)
– Durable construction (Built to handle higher operating temperatures)

Pros:
– Significant performance upgrade for high-compression or boosted motors.
– Durable and reliable even under demanding racing conditions.
– Direct-bolt fitment with most existing brackets.

Cons:
– Might require a slight tuning adjustment to maximize the potential of the increased spark.

Best for: Performance enthusiasts running forced induction (superchargers or turbos) or high-RPM naturally aspirated builds.

Expert Opinion: If your LS2 is making serious power—say, over 600hp—you need the extra kick these high-voltage units provide. They are a worthwhile investment to ensure you aren’t losing power due to spark blowout.

2Pcs Ignition Coil Wire Harness Connector Compatible with GM LQ9 LQ4 LS2 LS3 LS7 LSX 5.3 6.0 6.2 7.0 and The Coil Packs Found on Most Truck

While this isn’t a coil pack itself, it’s an absolutely critical component, especially if you are upgrading or swapping coil types (like moving to the powerful D585 truck coils). The harness connector is often a point of failure, deteriorating due to heat and vibration, leading to misfires even if your coils are new. These replacement connectors ensure that the crucial signal and power delivery to your coil packs remain clean and uninterrupted. They are made of excellent, stable material designed for longevity and easy plug-and-play installation.

Key features that stand out:
– Premium Ignition Coil Harness Connector (Replaces damaged or worn harnesses)
– Wide compatibility (Works with LS2, LS3, LS7, LQ4, and many truck coils like D585)
– Durable material (Designed to resist heat and provide a stable connection)
– Plug and Play Installation (Simple replacement procedure)

Pros:
– Essential for fixing intermittent misfires caused by faulty wiring.
– Inexpensive insurance when installing new, high-performance coils.
– Compatible with many popular LS coil types.

Cons:
– You must verify the specific coil pack connector style (e.g., LS2 first design vs. second design) before ordering.

Best for: Anyone performing an LS coil swap (e.g., D585 truck coils) or troubleshooting random electrical misfires.

Expert Opinion: Never overlook the harness. A fantastic best ignition coil for ls2 won’t perform if the wiring is compromised. This is a must-have if your engine bay has seen years of high heat cycles.

A-Team Performance – Ignition Coil – Compatible with Chevrolet GM Pontiac LS LSX LS1 LS2 LS3 LS6 LS7 293 325 364 376 427 Black Pack of 8

The A-Team Performance Black Pack offers a compelling balance of enhanced performance and value. These coils are specifically engineered to provide a 15 percent increase in spark energy compared to standard OEM coils, utilizing specially designed magnetic steel cores. This added output translates to a hotter spark, which is beneficial for engines running performance camshafts or slightly higher compression. They are housed in a robust, high-resistant epoxy material, offering crucial resistance to the intense shock and vibration common at high RPMs.

Key features that stand out:
– 15 percent more spark than OEM (Uses specialized magnetic steel cores)
– High resistant epoxy material (Excellent resistance to shock and vibration)
– High-output replacement of the Delco D510C (Proven performance design)
– Black finish (Aesthetics that complement any engine bay)

Pros:
– Strong performance increase without requiring expensive tuning.
– Very durable housing designed for performance use.
– Excellent value for a high-output set of 8 coils.

Cons:
– Some users report minor differences in fitment compared to absolute factory exact dimensions.

Best for: Street/strip vehicles looking for a substantial spark upgrade over stock coils without the complexity or cost of race-specific units.

Expert Opinion: The A-Team coils bridge the gap between expensive race coils and basic OEM replacements. The 15% increase is noticeable, especially in mid-range RPM power delivery, making them a superb option when searching for a high-quality best ignition coil for ls2.

Blemished GM 12558693 Ignition Coil For LS2, LS4, LS7 Engines Square Coil 12556893 D581

For drivers who need guaranteed OEM functionality on a tighter budget, remanufactured coils like this D581 unit (often referred to as a “truck coil”) are an excellent compromise. While listed as blemished, these units are disassembled, meticulously inspected, and fully computer tested to ensure they meet or exceed original equipment performance standards. The benefit here is OE quality—meaning a perfect vehicle fit and consistent performance—without paying the premium price for brand new. All internal components with high failure rates are replaced or repaired during the remanufacturing process.

Key features that stand out:
– Remanufactured Original Equipment part (Guarantees perfect fitment)
– Fully computer tested (Verifies signal strength and correct polarity)
– Components replaced or repaired (Maintains or exceeds O.E. performance)
– D581 Square Coil type (Known for robust performance in many LS engines)

Pros:
– Significant cost savings compared to brand new OEM units.
– Guaranteed OE fit and consistent performance.
– Environmentally friendly option through reuse.

Cons:
– As remanufactured units, the external appearance might show minor cosmetic imperfections.

Best for: Budget-conscious restorers, daily drivers, or mechanics prioritizing reliable OE components over aftermarket performance gains.

Expert Opinion: Don’t let “blemished” scare you. A quality remanufactured coil, especially an OE part like this, is often a smarter choice than a cheap, untested aftermarket component when cost is a factor. They offer fantastic value and the reliability you expect from GM.

Comparison and Buying Insights

Choosing the best ignition coil for ls2 depends entirely on your build goals. You generally have two paths: OE reliability or maximized performance.

If you are running a stock or lightly modified LS2, the GM 12573190 coils are the safest bet. They offer the longest proven lifespan and require zero additional tuning adjustments. They are the definition of “set it and forget it.”

For builders chasing higher horsepower, especially if you are utilizing boost or high compression, the A-Team Performance or ZZPerformance coils are far superior. These offer enhanced spark energy, which is critical for preventing misfires when cylinder pressure is high. Remember, higher output coils might require an adjustment to dwell settings in your ECU to operate optimally and maximize their benefit.

If budget is your main concern, the Blemished GM 12558693 (D581) coils offer OE quality at a significant discount. Just confirm that your current mounting brackets and harness connectors are compatible, as these D581 (truck) coils are physically shaped differently than the stock LS2/LS7 coils. Speaking of harnesses, never forget that the 2Pcs Ignition Coil Wire Harness Connector is a vital, low-cost preventative measure against misfires, particularly for high-mileage cars or during coil swaps.

Final Verdict: Which LS2 Coil Should You Choose?

Deciding on the best ignition coil for ls2 comes down to three key categories:

The Top Tier OEM Replacement: For the vast majority of daily drivers and stock applications, the 8 GM 12573190 Ignition Coils cannot be beat for guaranteed fitment, long-term stability, and plug-and-play simplicity. They represent the gold standard of factory reliability.

The Performance Champion: If your LS2 is making serious power or you are building a dedicated track machine, the A-Team Performance Black Pack provides the ideal blend of high spark output (15% increase) and vibration resistance without stepping into ultra-expensive race coil territory.

The Smart Budget Option: For those needing to restore peak performance on a tight budget without sacrificing quality, the remanufactured Blemished GM 12558693 (D581) coils provide exceptional OE performance and reliability at a fraction of the cost of new units.

Best Ignition Coil For LS2 FAQ

Are LS2 coils all the same, or do I need a specific part number?

No, they are not all the same. The LS2 platform typically uses two main designs: the first design coil (D513A) and the later, more powerful second design coil (D514A, or GM 12573190). While many coils are physically interchangeable (e.g., LS3 and LS7 coils), their power output and heat handling capabilities vary. Always verify the specific part number that matches your needs, especially when looking for the best ignition coil for ls2 to ensure optimal performance.

How do high-performance ignition coils increase horsepower?

High-performance coils don’t necessarily create power out of thin air, but they maximize the power you already have. By generating a higher voltage and current (a hotter spark), they ensure that the air-fuel mixture ignites completely and efficiently, particularly under high cylinder pressures (like those found in boosted or high-compression engines). This complete combustion eliminates potential power loss from misfires or spark blow-out at high RPMs.

Can I use LS truck coils (like D585) on my LS2 car?

Yes, many enthusiasts use truck coils (such as the D585, similar to the Blemished 12558693 unit) because they are known for high output and great durability. However, truck coils are physically bulkier and require specific mounting brackets that differ from the LS2 brackets. You will also need the correct coil wire harness connector since the plug is different from the standard LS2 car coil.

How often should I replace my LS2 ignition coils?

While there isn’t a strict replacement interval, LS coils are generally highly reliable and can last well over 100,000 miles. You should only replace them when you observe consistent misfiring, especially under load, or if diagnostic codes (like P0300 misfire codes) point specifically to ignition failure. If one fails, it’s generally recommended to replace the entire set for consistent performance, particularly when seeking the best ignition coil for ls2 performance.

What is dwell time, and should I adjust it when installing new coils?

Dwell time is the amount of time the coil is energized (charged) before it fires the spark plug. New, high-output coils require a specific, often slightly shorter, dwell time to prevent overheating and maximize spark energy. If you install performance coils, consulting with your tuner to adjust the ECU’s dwell settings is highly recommended to prevent premature coil failure and fully utilize the upgrade.

Are remanufactured coils worth the money?

For many owners, yes. Quality remanufactured units (like the specific GM part reviewed) are OE components that have been meticulously tested and restored, often with new internal components where failure is common. They offer the consistent performance and durability of a genuine GM part without the “new” price tag, making them a very reliable and cost-effective option for maintaining stock performance.