I know this has been debated many times on many forums, but I'm looking to see if anyone has any PERSONAL experience with both intakes above. K&N states an average of ~10HP gained, AFE say ~18HP. I know both are likely inflated, but just wondering if anyone has experience and opinions for the above CAI's. I have a 2017 Tahoe LT (5.3L) that I'm looking to put a CAI on.