I took my car to the dealership yesterday to replace my bypass valve. I had a seven speed DCT turbo 2016. Even when we moved as the first time the dealership couldn’t figure out how to replace it with my cold air intake modification. So I drove around for a week without it they said it would be fine well I noticed a small decrease in horsepower and still perform fairly well. Now if it has been replaced, my engine revs Much higher with return. Furthermore once I hit This gear all torque seems to cease to exist as close to red lining it will barely creep to higher speed. What could be the problem. If I had a blue off valve in place of this before the repair that has something to do with it as well?