I have an engine, harness and pcm from a 2005 ram 1500 with a hemi and 545rfe. is it possible to use this pcm for a use with a tremec 5 speed? Also how can i go about tuning changes for a cam swap and longtube headers? Will a diablosport be able to modify this stuff? Or something i have to send the pcm off for?

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Welcome to the Hemi Swap Community! We want this to be an open forum where anyone can ask anything about the Hemi engine and doing Hemi Swaps. We find the information can be scattered all over the internet and want this to be a centralized place where we can talk amongst each other and share our questions and answers that may be able to help others going through similar Hemi swap situations. Please be kind to others and help out where you can while getting the information you need. Blake and Mike will be admins and answering questions here as well!
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-DIYHEMI
All you need is the original harness and ECM for that 2005 truck and our quick harness and you are done