The engine is the heart of your Challenger — every performance mod either helps it breathe better, burn fuel more efficiently, or force more air in. These upgrades range from simple bolt-on air intakes to complete supercharger kits. Even small changes to how air and fuel get into the engine can make a noticeable difference in how the car feels.
Adjustable regulators let you tune base fuel pressure; critical when running E85 or boost above ~10 PSI on a stock pump.
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