What can the 4.0l ECM take?

Unfalconbelievable

Well-known member
What can the 4.0l ECM take? I've got a mate with an XG falcon ute and he wants to put a little hair dryer on it. only liitle maybe 7-10psi with a jay pipe from the stock manifold. I doubt the factory ECM will take even that will it? Is there a cheapish piggyback system for the OHC 4.0L?

And same question for a 250 crossflow EFI from an XE manual?
 
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