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Top rated automotive performance spark plugs

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Top rated automotive performance spark plugs

AI-generated summary · updated July 27, 2026 · verify details before purchase.

  1. Best overall

    Denso 4713 Iridium TT Spark Plug

    4.7/5 $10-$15

    Excellent durability and performance with twin-tip iridium design for improved ignitability and fuel efficiency.

    • Long lifespan
    • Improved fuel economy
    • Smooth acceleration
    • Slightly expensive
    View on Amazon manufacturer site
  2. Best value

    NGK 7090 BKR6EIX-11 Iridium IX Spark Plug

    4.6/5 $8-$12

    Trusted iridium upgrade with fine-wire center electrode for better throttle response and reduced misfires.

    • Reliable brand
    • Better throttle response
    • Affordable
    • Shorter lifespan than Denso TT
    View on Amazon manufacturer site
  3. Best for GM vehicles

    ACDelco 41-962 Iridium Spark Plug

    4.5/5 $7-$11

    OE replacement for many GM engines, offering consistent performance and longevity.

    • OEM quality
    • Good longevity
    • Smooth idle
    • Limited to specific applications
    View on Amazon
  4. Best budget pick

    Champion 7989 Copper Plus Spark Plug

    4.4/5 $3-$6

    Copper core provides reliable performance at a low cost, ideal for older engines or short-term use.

    • Very affordable
    • Good conductivity
    • Widely available
    • Shorter lifespan
    • Not for high-performance engines
    View on Amazon
  5. Best for durability

    Bosch 4417 Platinum+4 Spark Plug

    4.3/5 $6-$10

    Four ground electrodes offer long service life and reliable performance in various conditions.

    • Long lifespan
    • Even wear
    • Resistant to fouling
    • Slightly lower performance than iridium
    View on Amazon manufacturer site
  6. Best for older engines

    E3.20 Automotive Spark Plug

    4.2/5 $5-$8

    DiamondFire electrode design enhances combustion efficiency and power in older vehicles.

    • Improved power
    • Better combustion
    • Easy installation
    • Not ideal for high-compression engines
    View on Amazon manufacturer site

Buying advice

Consider your engine's requirements and driving habits. Iridium plugs offer the best performance and longevity, while copper plugs are budget-friendly for older engines. Check your vehicle's manual for correct gap and heat range.

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