is an engine management system needed if i build the internals on my scion tc?
i am preparing to boost and i was going to build the internals on my 2006 scion tc before i do, due to mileage just to be safe, and i was wondering if i got new pistons and such, the pistons would probably be overbored +.5mm, but i am just uninformend as far as the requirements regarding engine management and when it is needed.
this isnt really a boost related question this is only regarding the engine internals being overbored by .5mm and if i need an engine management system for that, i know i will need an engine management system for boost but that was going to be after i built my engine instead of doing it all at once i was going to build the engine and upgrade the transmission, break everything in, then boost.4
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