I had a mp8 and a Bullydog gt tuner going at the same time pre total delete. Now I'm running a H&S Mini Maxx with a full delete. I have seen a few guys running the Torq2 and the Spartan stacked so... I figured lets try the MP8 stacked with the Mini Maxx. Well I'll tell you the throttle response seems better and my milage on the trip home from work @ 50 miles I gained .2 miles to the gallon. Now I was not easy on it at all on the way home either,trying full throttle runs at no power, half power, and full power on the Mp8. The H&S was left on Hot. It was pretty awesome I have to say. I'll have to see how much better the mpg gets the more I drive it and if any codes come up or anything else happens. I'll keep you all updated.