I’ve been doing a lot of reading and searching, and am confused. This is my first “tuner car”, and I’m trying to figure out my exhaust setup. I’m trying for 300hp and a 3 inch decat test pipe down to a 2.5 inch full catback. All my buddies are calling me a tool for wanting to reduce from 3-2.5 inch. In my mind, I can’t understand why this would be detrimental to performance on a build for 300hp. You guys have any input to share? I figure yall would know given experience.