Challenger Mod Blog
Expert guides, safety tips, and build advice for your 2022 Dodge Challenger.
How-To
Spark Plugs and Ignition Coils: The HEMI Ignition Upgrade Guide
The HEMI runs 16 spark plugs — two per cylinder. Knowing when to upgrade, which plugs to choose for your power level, and how ignition coils factor in will save you from misfires and protect your engine.
Apr 18, 2026
spark-plugs, ignition-coils
How-To
Serpentine Belt Replacement on the HEMI: DIY Guide
How to replace the serpentine belt on a 5.7L or 6.4L HEMI — a straightforward job that saves shop labor costs.
Apr 18, 2026
serpentine-belt, DIY
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 Differential Fluid: When to Change It and What to Use
The rear differential is often neglected — here's the correct fluid, change interval, and signs of trouble.
Apr 18, 2026
differential, gear-oil
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
How-To
Challenger Brake Caliper Painting and Powder Coating Guide
Painted or powder-coated brake calipers are one of the best visual upgrades. Here's how to do it right.
Apr 18, 2026
brake-calipers, paint
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
How-To
Challenger Spark Plug Change DIY: Step-by-Step for 5.7L and 6.4L
Changing spark plugs on the HEMI is straightforward but has a few gotchas. This guide covers both 5.7L and 6.4L procedures.
Apr 18, 2026
spark-plugs, DIY
How-To
Challenger Brake Fluid Flush: Why It Matters and How to Do It
Brake fluid absorbs moisture over time, raising the boiling point dangerously. Here's when and how to flush it.
Apr 18, 2026
brake-fluid, flush
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
Buyer's Guide
How the HEMI's Fuel Injection System Works: Port vs Direct Injection
Understanding your HEMI's injection system helps you make better decisions about fuel, maintenance, and modifications.
Apr 18, 2026
fuel-injection, port-injection
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