Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.

Octane booster is sold everywhere and looks like an easy win. But does it actually raise octane enough to matter in a HEMI? Here's what the chemistry says — and when it's worth using.

Heat is the enemy of boosted power. If you're running a Hellcat or an aftermarket supercharger on your Challenger, here's how intercooler upgrades work and when they're worth doing.

Turbochargers are fundamentally different from superchargers in how they build power — and understanding that difference helps you use them effectively. Here's a plain-English explanation of how turbo technology works on the Challenger.

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.

A smaller blower pulley or ported lid is the first and most cost-effective upgrade for any Hellcat or Redeye.