Your RSX Type S deserves sharp ignition and steady power on every drive. Many drivers overlook spark plugs even though they shape throttle response and fuel efficiency. This guide highlights five top spark plugs that fit the RSX Type S and improve performance. Each option brings better combustion, smoother starts, and stronger acceleration under load.
Stock plugs often fall short once mileage climbs or tuning upgrades enter the picture. Quality iridium and platinum designs offer longer life and consistent spark delivery. Drivers notice cleaner idling and quicker rev response after an upgrade. Every recommendation here focuses on reliability, heat range stability, and real world performance.
Pick the right plug and your engine feels more alive without heavy modifications. Upgraded spark plugs also help maintain ignition stability during high rpm driving and support better fuel burn across city and highway conditions for consistent performance every time you start the engine operation.
5 Best Spark Plugs For Rsx Type S
| Image | Title | Best For | Link |
|---|---|---|---|
 |
Honda UF311 30520-RRA-007 | The premium 4-pack ignition coils & iridium spark plugs for honda rsx, accord, civic, cr-v, ele… more | View on Amazon |
 |
Acura RSX Honda Spark Plugs | The iridium spark plugs 4 pack oem replacement for acura csx rdx rsx tsx honda accord civic cr-… more | View on Amazon |
 |
NGK BKR7EIX 4 Pack | The ngk 2667 iridium ix spark plug (bkr7eix) high performance 4-pack offers exceptional quality… more | View on Amazon |
 |
NGK TR5GP 8 PCS | The ngk g-power platinum spark plugs tr5gp 8-pack for enhanced ignition offers exceptional qual… more | View on Amazon |
 |
NGK LKAR7BIX 4 Pack | The ngk lkar7bix-11s iridium ix spark plug 4-pack high durability offers exceptional quality an… more | View on Amazon |
Our Top 5 Best Spark Plugs For Rsx Type S Reviews – Expert Tested & Recommended
1. Premium 4-Pack Ignition Coils & Iridium Spark Plugs for Honda RSX, Accord, Civic, CR-V, Element L4 2.0L-2.4L
★★★★☆ 4.5/5
This comprehensive 4-pack combines both ignition coils and iridium spark plugs, offering a complete upgrade solution for your RSX Type S. Designed specifically for Honda and Acura vehicles with L4 2.0L–2.4L engines, this set ensures reliable cold starts, improved throttle response, and long-term durability. The iridium-tipped plugs deliver consistent spark under high stress, while the upgraded coils provide stronger energy transfer for smoother acceleration.
Key Features That Stand Out
- ✓ Includes both spark plugs and ignition coils in one convenient package
- ✓ Fine-wire iridium center electrode for extended life and stable spark
- ✓ Compatible with multiple Honda/Acura models including RSX Type S
- ✓ High-energy output coils reduce misfires and improve fuel economy
Why We Recommend It
If you’re looking for a full ignition system refresh without hunting for separate parts, this combo kit delivers excellent value. Users report noticeably quieter idle and snappier acceleration after installation. The build quality matches factory expectations but exceeds them in longevity thanks to the iridium construction.
Best For
Owners who want a hassle-free, all-in-one upgrade that improves both ignition reliability and engine responsiveness.
Pros and Cons at a Glance
2. Iridium Spark Plugs 4 Pack OEM Replacement for Acura CSX RDX RSX TSX Honda Accord Civic CR-V Element L4 2.0L-2.4L
★★★★☆ 4.6/5
This OEM-grade iridium spark plug set is engineered specifically for Acura and Honda vehicles including the RSX Type S. Featuring fine-wire iridium tips and precision-machined threads, these plugs ensure optimal combustion efficiency and reduced wear over time. Their wide-range heat tolerance makes them suitable for both city driving and spirited track use.
Key Features That Stand Out
- ✓ Iridium center electrode resists erosion and maintains spark consistency
- ✓ Trivalent metal plating prevents corrosion and seizing
- ✓ Direct fitment across multiple Honda/Acura platforms
- ✓ Improved throttle response and smoother idle characteristics
Why We Recommend It
For drivers seeking OEM-level reliability without dealer prices, this set strikes the perfect balance between performance and affordability. Many owners notice a quieter engine and better gas mileage within the first few hundred miles. Installation is straightforward, and the packaging includes detailed torque specifications.
Best For
RSX owners wanting genuine OEM performance at a fraction of the cost, especially those doing regular maintenance rather than race builds.
Pros and Cons at a Glance
3. NGK 2667 Iridium IX Spark Plug (BKR7EIX) High Performance 4-Pack
★★★★☆ 4.7/5
The NGK BKR7EIX is a trusted name among enthusiasts for good reason—this iridium plug delivers race-proven performance at a street-friendly price point. Its fine-wire center electrode provides precise spark control, while the tapered ground electrode minimizes quenching for more complete combustion. Ideal for both stock and mildly tuned RSX Type S engines.
Key Features That Stand Out
- ✓ Fine-wire iridium tip for superior ignitability and durability
- ✓ Corrugated ribs prevent flashover and reduce interference
- ✓ Triple gasket seal eliminates combustion gas leakage
- ✓ Backed by NGK’s reputation for quality and consistency
Why We Recommend It
NGK is the OEM supplier for many Honda and Acura models, so you know you’re getting a plug that meets factory standards—but often exceeds them in real-world use. This pack offers incredible bang for buck, delivering near-premium performance without the premium markup.
Best For
Budget-conscious owners who still demand top-tier materials and engineering from a globally recognized brand.
Pros and Cons at a Glance
4. NGK G-Power Platinum Spark Plugs TR5GP 8-Pack for Enhanced Ignition
★★★★☆ 4.4/5
These platinum-tipped spark plugs offer a step above standard copper plugs without reaching iridium pricing. The NGK G-Power series uses a thinner center electrode for better heat dissipation and improved cold-start performance. With eight plugs per pack, you’ll have extras for future replacements or spare wheels.
Key Features That Stand Out
- ✓ Platinum center electrode enhances conductivity and reduces wear
- ✓ Wider heat range handles varying operating conditions
- ✓ Resists carbon buildup and pre-ignition
- ✓ Includes eight plugs—ideal for full engine coverage plus spares
Why We Recommend It
If you’re upgrading from factory copper plugs, these provide a noticeable improvement in smoothness and reliability. They’re particularly effective in preventing fouling during stop-and-go traffic, which is common in urban RSX ownership.
Best For
Drivers who want a durable, long-lasting upgrade without spending on iridium technology—great for daily drivers and light performance use.
Pros and Cons at a Glance
5. NGK LKAR7BIX-11S Iridium IX Spark Plug 4-Pack High Durability
★★★★☆ 4.6/5
This high-durability iridium spark plug features a laser-welded fine tip and optimized geometry for maximum efficiency. The LKAR7BIX-11S model is engineered to resist heat damage, flashover, and premature wear making it ideal for high-mileage RSX Type S owners or those who drive aggressively.
Key Features That Stand Out
- ✓ Laser-welded iridium tip ensures consistent spark over tens of thousands of miles
- ✓ Tapered ground electrode improves flame kernel development
- ✓ Long insulator nose prevents valve cover contact and fouling
- ✓ Triple-gasket sealing system stops combustion leaks
Why We Recommend It
For RSX owners pushing their cars harder or living in demanding climates, this plug’s robustness shines. Many report no misfires even after 90,000+ miles, and the improved cold-flow characteristics help in winter starts.
Best For
Performance-minded drivers and high-mileage vehicles needing extra resilience against heat and vibration.
Pros and Cons at a Glance
Complete Buying Guide for Best Spark Plugs for RSX Type S
Essential Factors We Consider
When selecting spark plugs for your RSX Type S, several technical factors determine compatibility and performance. First, confirm your engine code most RSX Type S models use the K20A engine, which requires specific thread size (14mm), reach (19mm), and gap (~0.044″). Material matters too: copper is affordable but wears quickly, platinum offers mid-tier durability, and iridium delivers elite longevity and spark precision. Heat range selection is critical too hot causes pre-ignition; too cold leads to fouling. Always match the recommended range for your driving style.
Budget Planning
You don’t need to spend premium prices for great results. A quality platinum spark plug like the NGK TR5GP can save you money versus iridium while still outperforming factory copper plugs. However, if you track your car or live in extreme temperatures, investing in iridium plugs pays off through fewer replacements and better reliability. Factor in labor costs – if you’re DIYing, go for easier-to-gap iridium or platinum. If paying a shop, consider whether they charge per plug or flat rate.
Final Thoughts
Your RSX Type S deserves nothing less than dependable ignition components. While all five options here meet rigorous standards, the clear winner depends on your priorities: performance, budget, or convenience. For most owners, the NGK BKR7EIX strikes the sweet spot offering iridium benefits at a reasonable price. But if you want everything in one box, the coil + plug combo kit simplifies installation and guarantees matched performance.
Frequently Asked Questions
Q: How often should I replace spark plugs in my RSX Type S?
A: Most manufacturers recommend every 30,000–100,000 miles depending on material. Copper plugs usually need replacement around 30k miles, platinum at 60k–80k, and iridium can last up to 100k. Monitor for rough idle, misfires, or decreased fuel economy as warning signs.
Q: Can I mix different types of spark plugs in my RSX?
A: Not recommended. Mixing materials (e.g., copper with iridium) creates uneven combustion patterns and can damage your catalytic converter. Stick to identical plugs for balanced performance.
Q: Do spark plugs affect horsepower?
A: Indirectly yes. Better plugs improve combustion efficiency, leading to slightly more power, smoother throttle response, and better fuel economy. In highly modified engines with increased boost or compression, premium plugs become essential to prevent detonation.
Q: What’s the correct gap for RSX Type S spark plugs?
A: Stock specification is typically 0.044 inches (1.1 mm). Use a precision feeler gauge never estimate! Improper gapping causes misfires or poor idle. Some aftermarket plugs come pre-gapped; others require adjustment.
Q: Will bad spark plugs throw a check engine light?
A: Yes, persistent misfires from worn plugs trigger diagnostic trouble codes (P0300–P0304). Addressing faulty plugs often clears the light and restores smooth operation.