So i installed qtp low profile cutouts in my car and I noticed that when i get to the 130 mile an hour range I start slowing down substantially. It seems to struggle alot to keep going. I compared it to the cutouts being closed and it just seems to not struggle at all getting to 160. Anyone know why this is? I dont have it tuned yet and from past experience i know for a fact that will make a difference but my understanding was that less restriction to airflow would make it a tad bit faster without tuning rather than slow it down. What do u guys think? All i have are cutouts, hellcat airbox, and resonator delete.