Once you buy a 36041-S1 (EvoHT2 Ram Swap), you will proceed to edgeproducts.com/pcm-ship and follow the directions online to submit the required information to unlock your PCM. Upon processing and confirming vehicle information online, Edge will ship an unlocked PCM at no additional charge. Once you receive the unlocked PCM, you will need to remove your core PCM, install the unlocked PCM, and follow instructions for returning your core back to Edge Products. After installing the unlocked PCM, you can use your EvoHT2 and program your 5.7L 8-Speed Hemi truck.*Product requires an unlock PCM to work. PCM unlock cost included in the price of the product.