For what it’s worth, I recently noticed under my hood a small trace or evidence of dirt/airflow into my stock intake snorkel. I did not see any other traces anywhere else. I installed a Velossa Tech a few months ago 🤷🏻♂️
I’ve been comparing this system with the same version from MBRP. Very closely priced but Gibson is stainless steel muffler & tailpipes where MBRP is a combo of steel with aluminized tailpipes. Gibson seems to be the better exhaust for longevity.
I had a small chip on the hood and buff marks in the paint from where the factory or dealer folks tried to clean it up. My detail guy was able to get the buff marks out prior to applying ceramic coating & strongly suggested I not get the hood repainted. i suggest you not touch the tailgate.