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Challenger Mod Blog

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

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Common Smog and Emissions Failures for Modified Challengers
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