Challenger Mod Blog
Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.
Buyer's Guide
Nitrous Oxide for the Dodge Challenger: A Beginner's Guide
Nitrous is the cheapest way to add big power to a Challenger — but it's also the easiest to abuse. Here's what you need to know before you push the button: how it works, what's safe, and how to set it up right.
Apr 18, 2026
nitrous oxide, NOS
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
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
Why Does My Challenger Idle Rough When Cold? Common Causes and Fixes
A rough, lumpy cold idle on the Challenger can be alarming — especially if it started after mods. Here's how to distinguish between normal cold-start behavior, MDS quirks, and actual problems that need fixing.
Apr 18, 2026
rough idle, cold start
How-To
Steering Wheel Vibration on the Challenger: Causes and Fixes
Steering wheel vibration is one of the most common concerns on any car — and the Challenger has a few specific causes. Here's how to diagnose what's actually shaking and how to fix it.
Apr 18, 2026
steering wheel vibration, wheel balance
Buyer's Guide
OBD-II Diagnostics for the Challenger: Best Scanners and Common Codes
Which OBD-II scanners work best with the Challenger and what the most common fault codes mean.
Apr 18, 2026
OBD2, diagnostics
How-To
Challenger Wheel Bearing: Symptoms, Diagnosis, and Replacement
A bad wheel bearing makes a distinctive noise that gets worse at speed. Here's how to diagnose and fix it.
Apr 18, 2026
wheel-bearing, noise
Buyer's Guide
Short-Term and Long-Term Fuel Trims: What They Tell You About Your Engine
STFT and LTFT values in your OBD data reveal whether your engine is running rich, lean, and why.
Apr 18, 2026
fuel-trims, STFT
Buyer's Guide
Nitrous Oxide Safety: What Every Challenger Owner Needs to Know Before Spraying
Nitrous is one of the most cost-effective power adders — but improper use destroys engines. Here's the safety framework.
Apr 18, 2026
nitrous, NOS
How-To
Steering Column and Steering Rack Issues on the Challenger
Clunking, binding, and wandering steering are common complaints. Here's how to diagnose and fix them.
Apr 18, 2026
steering, clunk
How-To
Challenger Interior Rattle and Noise Diagnosis Guide
Interior rattles are one of the most frustrating Challenger ownership experiences. Here's a systematic approach to finding and fixing them.
Apr 18, 2026
rattle, noise
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