Hello, I just installed a stage 2 setup on my 2011 sti hatch. Aem intake, perrin highflow downpipe and magnaflow catback exhaust. I loaded cobb ots stage 2 maps. Since then I get some hesitation where its seems like the car loses power or catches when just cruising. It happens a second then will engage again. I dont notice it happening when I am on the throttle. Its just a random lag for a second when maintaining speed and happens randomly. Any suggestions would be helpful.