Quote: Okay, so let me ask this to get back on track. Is there any reason to hunt down a 6.4 computer and harness, or go right for aftermarket such as the MS3X? I know where there is a factory harness pretty reasonable, but I have not looked for a factory computer. Also, is the factory computer locked down or can you tune it as well?
I believe right now your best bet is Modern Muscle. They use a 2009 Challenger ecu and base their 6.4 swap and harness from there. They keep the VVT and SRV active.
