Challenger Mod Blog
Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.
Buyer's Guide
Common Smog and Emissions Failures for Modified Challengers
In states with emissions testing, aftermarket exhaust, tunes, and O2 sensor changes can cause your Challenger to fail inspection. Here's what triggers failures and how to keep your build road-legal.
Apr 18, 2026
emissions, smog test
Buyer's Guide
Tazer Unlocker Guide: Everything It Does for Your Challenger
The Tazer is a plug-in OBD-II device that unlocks hidden factory features on the Challenger without touching the PCM tune. Here's every feature it enables and whether it's worth buying for your specific car.
Apr 18, 2026
Tazer, Z Automotive
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