Challenger Mod Blog
Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.
How-To
Spark Plugs and Ignition Coils: The HEMI Ignition Upgrade Guide
The HEMI runs 16 spark plugs — two per cylinder. Knowing when to upgrade, which plugs to choose for your power level, and how ignition coils factor in will save you from misfires and protect your engine.
Apr 18, 2026
spark-plugs, ignition-coils
How-To
Challenger Coil Pack and Ignition Coil Replacement Guide
Failing ignition coils cause misfires and rough idle. Here's how to diagnose and replace them on the HEMI.
Apr 18, 2026
ignition-coil, COP