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Challenger Mod Blog

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

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All Posts (211)Build Guide (6)Comparison (18)Buyer's Guide (124)How-To (58)News (1)Safety (4)
MDS Delete: Why Manual and Cam-Swapped HEMIs Need This
Buyer's Guide

MDS Delete: Why Manual and Cam-Swapped HEMIs Need This

If you're planning a cam swap on an automatic Challenger, the MDS delete isn't optional — it's a required part of the build. Here's what MDS is, why it has to go before a cam swap, and what the delete kit actually includes.

Apr 18, 2026
MDS delete, cam swap
How the HEMI MDS System Works (And Why It Matters for Your Build)
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
Why Does My Challenger Idle Rough When Cold? Common Causes and Fixes
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
Camshaft Upgrade Guide: Everything You Need to Know About HEMI Cam Swaps
Buyer's Guide

Camshaft Upgrade Guide: Everything You Need to Know About HEMI Cam Swaps

A camshaft swap is one of the most transformative naturally aspirated mods for the HEMI — but it requires a full master kit of supporting parts or your engine will fail. Here's everything you need to know.

Apr 18, 2026
camshaft, cam-swap
Challenger Fuel Economy: Real-World MPG and How to Improve It
Buyer's Guide

Challenger Fuel Economy: Real-World MPG and How to Improve It

Real-world Challenger MPG is lower than EPA ratings for most drivers. Here's what affects fuel economy and practical ways to improve it.

Apr 18, 2026
fuel-economy, MPG