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In this video we test the Cobb Tuning stage 2 package which includes their version of a stock airbox intake, charge pipe, top mount intercooler and an OTS (off the shelf) tune. We then load the PREracing OTS Stage 1 map on the car to compare power numbers as well as see what further gains can be had by custom tuning. In this video I briefly discuss the Subaru DAM (dynamic advance multiplier) system as its used in the DIT engines and why you can't necessarily trust that your car is "knock free"