Modified PCMs from DiabloSport and Superchips deliver a true plug-and-play solution for performance enthusiasts. Each PCM comes pre-calibrated to unlock horsepower, torque, and throttle response beyond factory limits. Ideal for modern GM, Ford, and Chrysler vehicles, these upgraded modules ensure faster tuning, better drivability, and complete compatibility with handheld or inline tuners for instant performance gains.

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.

Holley’s PCM + Tuner Combo Kits bundle a pre-tuned performance PCM with a compatible handheld tuner for the ultimate convenience. This pairing lets you swap in a calibrated PCM while retaining full adjustability via the included tuner. Ideal for GM, Ford, and Chrysler applications, each kit provides dyno-tested gains in horsepower, torque, and efficiency—delivering everything you need for a quick, reliable, and powerful upgrade.