Depends on which side you are on for this specific topic. Here is a road and track article that way more up to date 2018 to be exact. I run the complete S&B system in my diesel and I have it programmed is it going to add 500hp and a million pounds of torque..? No, but it will help it breathe better by no more then maybe 5%. It weighs half as much also, so to each their own.
Tony
https://www.roadandtrack.com/car-cul...ilters-tested/