aftermarket ems

[JointTech]

if you are doing a frame off where everything is easy to get to and being redone anyway is there a disadvantage other than price of using an aftermarket EMS like FAST or Atomic or Megasquirt?

The main disadvantage I see if you are just doing a swap is dealing with the wiring harness. But if everything is exposed already that kind of negates that problem. all the systems above seem to still use oem sensors.

My reason for asking is Ill be putting on a turbo which made me go looking for a boost controller, which led me to AEM plug and play EMS which led me to FAST and Atomic and that whole can of worms