# TLDR Review: NGK Iridium IX Spark Plug 2309

*Published: 2024-06-21 | Updated: 2024-07-10 | Source: https://shopsavvy.com/reviews-tldr/ngk-iridium-ix-spark-plug-2309*

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## Verdict

The NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4 is a great choice for car enthusiasts looking to enhance vehicle performance with a reliable and top-quality spark plug. It delivers smoother engine operation and improved responsiveness. However, be prepared for a potentially challenging installation, especially if you're not experienced in working with spark plugs.

**Top pro:** Highly reliable, with many users experiencing long-lasting performance.
**Top con:** Installation may be tricky for some, potentially requiring more time and effort than expected.

## Product: NGK Iridium IX Spark Plug 2309
**Brand:** NGK
[Compare prices and price history on ShopSavvy](https://shopsavvy.com/products/ngk-iridium-ix-spark-plug-2309)

## Pros
- Highly reliable, with many users experiencing long-lasting performance.
- Improves vehicle operation, running far smoother and more responsive.
- Pre-gapped for easier installation and even newbies can manage the replacement.
- Top quality craftsmanship, typical of NGK products.
- Users noted they no longer have issues with their vehicle misfiring.

## Cons
- Installation may be tricky for some, potentially requiring more time and effort than expected.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Highly reliable, with many users experiencing long-lasting performance. | Installation may be tricky for some, potentially requiring more time and effort than expected. |
| Improves vehicle operation, running far smoother and more responsive. |  |
| Pre-gapped for easier installation and even newbies can manage the replacement. |  |
| Top quality craftsmanship, typical of NGK products. |  |
| Users noted they no longer have issues with their vehicle misfiring. |  |

## Last Seen Prices

*Each price is the last one ShopSavvy observed, on 2024-11-16; it may have changed since.*

| Retailer | Price | Availability | Last seen |
|----------|-------|-------------|-----------|
| [Walmart](https://shopsavvy.com/api/redirect/products/ODHgqbRcogmplWpoTAsz/offers/zcAR9r7EvUBZsNfxRr1C?source=shopsavvy&medium=article-review-tldr) | $32.07  | In Stock | 2024-11-16 (may have changed) |
| [Real Street Performance](https://shopsavvy.com/api/redirect/products/ODHgqbRcogmplWpoTAsz/offers/nh4sOK9L1qwxmdRwRok9?source=shopsavvy&medium=article-review-tldr) | $33.80  | In Stock | 2024-11-16 (may have changed) |

[See every retailer and the full price history on ShopSavvy](https://shopsavvy.com/products/ngk-iridium-ix-spark-plug-2309)

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*About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from ShopSavvy's price data (each price shows when it was last seen).*

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