Purchased SCT X4 and installed the canned 91 octane tune. My seat of the pants dyno was impressed. Today i got in my 3 bar map sensor and thermostat from Livernois and will install tomorrow. Went ahead and called my Schaeffers Oil rep and have some 5w20 and 75w-140 extreme gear oil coming. Gotta get my PTU oil changed right at 50,000 miles and who knows if it ever was.