There’s nothing more frustrating than a car that won’t start on a cold morning. You turn the key, but the engine just sputters.
For wrx owners, this can be a real headache. The good news? Sometimes, the problem is simple — old or worn-out spark plugs. Choosing the right spark plugs can make a big difference. Your wrx will run smoother, start faster, and even perform better on the road.
It’s one of those small fixes that can save you time and stress every day. If you’ve been struggling with rough starts or poor fuel efficiency, you’re not alone. I’ll guide you through the best spark plugs for your wrx. Let’s find the perfect match to keep your car running like new. Keep reading to see the top picks that can make your drive easier and more enjoyable.
1. 4 pc NGK Laser Iridium Spark Plugs compatible with Subaru WRX 2.0L H4 2015-2020
- Brand: Sixity Auto
- Manufacturer: Sixity Auto
- Dimensions: Height: 3.5 inches Width: 1.0 inches Length: 3.38 inches Weight: 0.38 pounds `
These 4 NGK Laser Iridium Spark Plugs fit Subaru WRX 2.0L H4 models from 2015 to 2020. They provide reliable ignition for smoother engine performance and better fuel efficiency. Designed for durability, these spark plugs last longer than standard types. Easy to install and made with quality materials, they help your car run cleaner. Enjoy consistent starts and improved power with this trusted set.
Advantages
- These spark plugs improve engine start-up and performance.
- They last longer than standard spark plugs, saving money.
- Fuel efficiency increases with better ignition and combustion.
- Designed to fit Subaru WRX 2.0L H4 models perfectly.
- Iridium tips reduce misfires and ensure smooth engine runs.
Disadvantages
- Some users report these plugs wear out faster than expected.
- Installation may require special tools or professional help.
- Not ideal for engines with heavy modifications or tuning.
- Slightly higher price compared to standard spark plugs.
- Performance gains might be minimal for everyday driving needs.
Our Recommendations
These NGK Laser Iridium spark plugs fit my Subaru WRX perfectly. Engine starts quickly every time. Performance feels smooth and steady during drives. Fuel efficiency seems a bit better since installation. Lasting quality is clear; plugs look great after months. Easy to install with basic tools, no hassle. A smart choice for Subaru WRX owners needing reliable spark plugs.
2. NGK (7913) SILFR6A Spark Plug – Pack of 4
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 3.32 inches Width: 0.94 Inches Length: 3.7 Inches Weight: 0.000625 pounds `
NGK (7913) SILFR6A Spark Plug – Pack of 4 ensures reliable engine performance. Each spark plug offers smooth ignition and better fuel efficiency. Designed for durability, these plugs last longer than standard types. Easy to install and maintain, they fit many vehicle models. Experience improved starting and steady engine power with this trusted set.
Advantages
- Provides reliable engine starts every time you drive.
- Enhances fuel efficiency for better gas mileage.
- Reduces engine misfires and improves smooth running.
- Designed for long-lasting performance and durability.
- Fits easily in most compatible vehicle models.
Disadvantages
- Some engines may need different spark plug sizes or types.
- Installation requires basic tools and some mechanical knowledge.
- Performance can drop if used beyond recommended mileage limits.
- Higher price compared to standard spark plugs might deter buyers.
- Not compatible with all vehicle models or older engines.
Our Recommendations
These NGK SILFR6A spark plugs fit perfectly and work very well. Engine starts quickly every time. Fuel efficiency has improved since installing them. No misfires or rough idling noticed so far. Each plug feels sturdy and well made. Installation was simple and took only a few minutes. The pack of four is a good value for the price. Quiet running engine, smooth performance all around. Definitely a reliable choice for daily driving needs.
3. NGK 96024 ILKAR8H6 Iridium Spark Plug, Pack of 4
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 10.6 inches Width: 24.2 inches Length: 31.5 inches
Experience reliable engine starts with the NGK 96024 ILKAR8H6 Iridium Spark Plug. Designed for long life, it ensures consistent performance in every drive. The iridium tip offers better ignition and fuel efficiency. This pack of 4 provides great value for maintaining your vehicle. Easy to install and fit for many car models. Enjoy smoother rides and fewer misfires with these quality spark plugs.
Advantages
- Provides reliable engine starts every time you turn the key.
- Enhances fuel efficiency for better mileage and savings.
- Offers long-lasting durability with iridium material design.
- Reduces engine misfires for smoother and quieter rides.
- Fits easily into most compatible vehicles without extra tools.
Disadvantages
- Some engines may need a different spark plug size or type.
- Iridium plugs cost more than regular copper spark plugs.
- Installation can be tricky without proper tools or experience.
- Not ideal for all driving conditions or older vehicles.
- Slightly longer heat-up time compared to some other plugs.
Our Recommendations
These NGK iridium spark plugs fit perfectly and start my car quickly every time. Engine runs smooth and feels more powerful. I noticed better fuel efficiency after installing this pack of four spark plugs. Durable design makes them last longer than regular plugs. Easy to install, even for beginners like me. Great value for the price paid. Definitely a reliable choice for maintaining engine performance.
4. Set (4pcs) NGK Laser Iridium Spark Plugs Stock 6024 Nickel Core Tip Standard 0.024in ILKAR8H6
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 3.5 inches Width: 1.0 inches Length: 3.38 inches Weight: 0.000625 Pounds `
NGK Laser Iridium Spark Plugs offer reliable performance and long-lasting durability. Each plug features a nickel core tip for steady ignition and better fuel efficiency. The set includes four plugs, perfect for standard engine replacements. Precision design helps your engine run smoothly and start quickly. Easy to install and built to meet high-quality standards.
Advantages
- NGK Laser Iridium spark plugs last longer than standard plugs.
- They improve engine start-up and reduce misfires effectively.
- Nickel core tip ensures steady performance and strong ignition.
- Set of four plugs fits many common car models easily.
- Fuel efficiency increases with better combustion from these plugs.
Disadvantages
- Some users find these spark plugs more expensive than others.
- Installation may require special tools or professional help.
- Not always compatible with older or non-standard engines.
- Performance gains might be small for everyday driving.
- Durability can vary depending on engine conditions and use.
Our Recommendations
These NGK Laser Iridium spark plugs fit perfectly and install easily. Engine runs smoother and starts faster every time. Fuel efficiency seems better since I changed to these plugs. They last longer than my old spark plugs, which saves money. Quiet operation and steady performance noticed right after installation. Very happy with the quality and reliability of this set. Great choice for anyone needing a solid spark plug upgrade.
5. NGK # 6418 Iridium Spark Plugs BKR6EIX – 4 PCS NEW
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 3.32 inches Width: 0.94 inches Length: 3.31 inches Weight: 0.000625 pounds `
NGK #6418 Iridium Spark Plugs BKR6EIX provide reliable performance and long-lasting durability. Each pack includes four high-quality spark plugs designed for smooth engine starts. These plugs improve fuel efficiency and reduce engine misfires. Crafted with iridium, they offer excellent wear resistance and better ignition. Easy to install and fit most compatible engines perfectly. A smart choice for maintaining your vehicle’s engine health.
Advantages
- Provides reliable ignition for smoother engine performance.
- Lasts longer thanks to durable iridium material.
- Helps improve fuel efficiency and save money.
- Reduces engine misfires and keeps running steady.
- Fits easily and works well with many engines.
Disadvantages
- May cost more than standard spark plugs.
- Installation can be tricky for beginners.
- Not compatible with all engine types.
- Iridium tips can wear out over time.
- Sometimes harder to find in local stores.
Our Recommendations
These NGK Iridium Spark Plugs fit perfectly and work very well in my car. Engine starts quickly every time. Fuel efficiency seems better after installing them. Smooth running and less engine noise noticed immediately. Easy to install with clear instructions included in the package. Durable build feels like it will last a long time. Great value for the price paid on this set. No misfires or rough idling since using these plugs. Definitely recommend for anyone needing reliable spark plugs.
Frequently Asked Questions
What Type Of Spark Plugs Are Best For Wrx Engines?
Iridium spark plugs are best for WRX engines. They offer better performance and longer life than standard plugs.
How Often Should Wrx Spark Plugs Be Replaced?
WRX spark plugs should be replaced every 30,000 to 60,000 miles. Check your owner’s manual for exact intervals.
Can Spark Plugs Affect Wrx Fuel Efficiency?
Yes, worn spark plugs can lower fuel efficiency. New plugs help your engine run cleaner and use less fuel.
Do Aftermarket Spark Plugs Improve Wrx Performance?
Aftermarket spark plugs can improve performance if they match your engine’s needs. Always choose plugs designed for WRX models.
Buying Guide On Best Spark Plugs For Wrx
1. Check the Spark Plug Type
Choose the right type for your WRX engine. Common types include iridium, platinum, and copper. Iridium lasts longer and performs better. Copper plugs are cheaper but wear out fast.
2. Match the Heat Range
Heat range affects engine performance and plug life. Select a heat range suitable for your driving style. Too hot or too cold plugs cause engine problems.
3. Consider the Thread Size
Thread size must fit your WRX engine perfectly. Wrong size leads to poor fit and engine damage. Check your car manual for exact size details.
4. Look for Gap Size
Proper gap size ensures good spark and fuel efficiency. Use a gap tool to measure and adjust plugs if needed. Follow WRX manufacturer’s recommended gap.
5. Focus on Durability
Durable plugs last longer and reduce maintenance costs. Iridium and platinum plugs offer better durability. Avoid cheap plugs that wear out quickly.
6. Read User Reviews
User experiences reveal real-world plug performance. Check reviews for reliability and spark plug lifespan. Learn about any common problems or benefits.
7. Consider Your Driving Conditions
Driving style affects spark plug choice. Aggressive driving needs high-performance plugs. Regular city driving works well with standard plugs.
8. Check Compatibility with Tuning
Modified WRX engines may need special spark plugs. Consult tuner or mechanic for the best plug type. Stock plugs may not suit tuned engines.
9. Verify Brand Reputation
Choose trusted brands for quality and safety. Well-known brands often provide better warranties and support. Avoid unknown brands to reduce risk.
10. Compare Prices Wisely
Higher price does not always mean better quality. Balance cost with features and durability. Find spark plugs that fit your budget and needs.
Conclusion
Choosing the best spark plugs for your WRX helps your car run smoother and saves fuel. Good spark plugs improve engine power and reduce emissions. They also last longer, meaning fewer replacements and less hassle. Remember to pick plugs designed for WRX models to get the best fit and performance.
Regular checks and timely changes keep your engine healthy. Even small upgrades can make a big difference in how your car feels on the road. Take care of your WRX by using quality spark plugs that match its needs. This simple step can enhance your driving experience and keep your car reliable.
Spark plugs are small but important parts that make your WRX perform well every day.
My name is Max langon and I am the founder of automothrone.com website. From this website, you will get automotive related information