Lord-Maniac
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Do the New JL's have smart self-learning ECM's when you do exhaust and intake mods do you need to flash the system for timing adjustment ?
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Intake manifold or just a simple air intake? When you say exhuast, do you mean just a catback/muffler? If you only do a muffler and a CAI, the ecm will adjust on its own.Do the New JL's have smart self-learning ECM's when you do exhaust and intake mods do you need to flash the system for timing adjustment ?