Challenger Mod Blog
Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.
SafetyFeatured
Supercharger Safety Guide: What You MUST Know Before Boosting Your HEMI
A supercharger without proper fuel support will destroy your engine. This is not an exaggeration. Before you buy any supercharger kit, read this guide.
Apr 18, 2026
supercharger, safety
Buyer's Guide
Does Octane Booster Actually Work? The Honest HEMI Answer
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.
Apr 18, 2026
octane booster, 91 octane
Buyer's Guide
Detonation and Knock: What It Is and How to Prevent It in Your HEMI
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.
Apr 18, 2026
detonation, knock
How-To
Challenger Winter Storage Guide: How to Store Your Car for the Season
Storing your Challenger for winter protects it from rust, dead batteries, and flat spots — but only if you do it right. Here's the complete checklist for putting your Challenger to sleep for the cold months.
Apr 18, 2026
winter storage, seasonal storage
Buyer's Guide
How the HEMI MDS System Works (And Why It Matters for Your Build)
Multi-Displacement System is one of the most discussed — and misunderstood — features of the automatic HEMI Challenger. Here's exactly how it works, why Dodge built it, and what it means for your mods.
Apr 18, 2026
MDS, Multi-Displacement System
Buyer's Guide
E85 Flex Fuel Conversion: Complete Guide for the 2022 Challenger
E85 offers 105 octane and real power gains — but it requires the right fuel system, injectors, and a flex tune. Here's everything you need to know before you convert your Challenger to E85.
Apr 18, 2026
E85, flex fuel
Buyer's Guide
Understanding Fuel Trims: What STFT and LTFT Tell You About Your HEMI
Fuel trims are one of the most important diagnostic parameters you can monitor on your Challenger — especially after mods. Here's what Short-Term and Long-Term Fuel Trim numbers mean and what to do when they're off.
Apr 18, 2026
fuel trims, STFT
Buyer's Guide
Air/Fuel Ratio Explained: Lambda, AFR, and What Your HEMI Should Target
Air/fuel ratio is the foundation of every engine tune — too lean causes detonation, too rich wastes power and fouls plugs. Here's what the numbers mean and what targets your tuner should be hitting on your Challenger.
Apr 18, 2026
AFR, air-fuel ratio
How-To
Why Is My Challenger Getting Bad Gas Mileage? Diagnosis Guide
The HEMI isn't known for sipping fuel, but if your Challenger is getting noticeably worse mileage than expected, something is wrong. Here's how to diagnose the most common causes.
Apr 18, 2026
gas mileage, MPG
How-To
ECU Tuning Guide: Why a Tune is the Most Important Mod You Can Do
An ECU tune is the one mod that makes every other mod work better. Here's what tuning does, the difference between handheld and custom tunes, and when you absolutely need one.
Apr 18, 2026
tune, ECU
Buyer's Guide
Fuel System Guide: Injectors, Pumps, and E85 for the 2022 Dodge Challenger
When power climbs past 500 HP — or you add any forced induction — the stock fuel system becomes the bottleneck. This guide explains when and how to upgrade injectors, pumps, and fuel rails, plus what E85 can do for you.
Apr 18, 2026
fuel-injectors, fuel-pump
How-To
Do I Need a Tune After Installing a Cold Air Intake?
The answer depends on your intake design and whether it moves the MAF sensor. Here's the full breakdown.
Apr 18, 2026
cold-air-intake, tune