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2021 Chrysler 300 PCM Swap Kits

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2021 Chrysler 300 PCM Swap Kits

The LD platform Charger received a modern facelift and incorporated many more modern luxuries such as bi-xenon HID headlights, LED taillights, a panoramic sunroof, and 20-inch wheels. However, the real stars of this generation rest under the hood. Every engine received a substantial boost in power over its respective predecessor, with the SRT-8 not topping out at 470 hp.

Holley PCM Swap Kits make upgrading your factory powertrain controller fast and frustration-free. Designed for direct-fit installation, these kits include pre-tuned PCMs, harnesses, and supporting hardware where required. Perfect for engine swaps or ECU replacements, each kit ensures proper communication, calibration, and performance from the start—providing a reliable path to modern tuning capability for your late-model or swap project vehicle.