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I decided to ask Magnuson whether the GPEC2 made any difference…apparently not. Not sure if that’s because HP tuners can’t support the newer GPEC2 units, or whether Magnuson is washing its hands of the dead-end Gladiator supercharger market. Shame, as it is a pretty good looking unit.

I could be wrong, but my 23 Gladiator Rubicon 3.6 Manual appears to have the GPEC2 as well. I wonder if this is the case for all manual Gladiators…and if that means supercharging/tuning is a go for manual gladiators?