Hi all, took my SRT6 out today and had an opportunity to put my foot down and give it some serious acceleration whilst pulling on to a major A road but once I hit around 5000 rpm the car just stayed there, it would not accelerate above nor change gear, after being overtaken by the line of family hatchbacks I lifted my foot, the car changed gear and away I went again. I have tested this several times now and the car seems sluggish and wont accelerate above around 5000 rpm, just sits there. The car has had some work completed recently including a full service, fuel filter change, supercharger oil change, coolant, water pump and thermostat replacement, serpentine belt replacement along with other non-engine related items. Searching the forums there doesn't seem to be a topic related, perhaps fuel pump or air in intercooler circuit?