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Side-by-side comparison of 3 parts for your 2022 Dodge Challenger
 NGK Iridium Performance Spark Plugs - Set of 16$143.84 |  NGK Iridium IX Spark Plugs (Set of 8)$37.60Best Price |  Champion Copper Plus Spark Plugs - Set of 16$53.70 | |
|---|---|---|---|
| HP Gain | — | — | — |
| TQ Gain | — | — | — |
| Difficulty | Easy | Easy | Easy |
| Zone | engine-top | Engine Bay | engine-top |
| Description | Iridium IX spark plugs pre-gapped for HEMI engines. Set of 16 for dual-plug heads. Improved ignitability and throttle response. One heat range colder for modified engines. | Iridium center electrode for improved ignitability and throttle response. Fine-wire tip for concentrated spark energy. Set of 8 for HEMI V8. | OE-spec copper core spark plugs for consistent combustion. Best choice for supercharged or nitrous applications where plugs are changed frequently. Full set of 16. |
| Best Price | $143.84Summit Racing | $37.60dtracing | $53.70Amazon |
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