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.

Detonation is one of the fastest ways to destroy a HEMI engine — but it's also preventable. Here's what knock actually is, what causes it in the Challenger, and how to protect your engine whether you're stock or built.

Compression ratio determines octane requirements, power potential, and how your HEMI responds to forced induction.