[Grunny]

Hi everybody, I just started working on my integra a few weeks back so far ive installed a cold air intake, I took out a welded diffuser that was getting in the way and just and re did the tubing. I also changed my oil pan. When I go to start the car now it sounds almost like a grinding noise either that or a high amount of air being pushed out somewhere it shouldn’t be going. Any help would be appreciated, thank you!!