I believe I have a leak coming coming from where is x pipe meets the manifolds. It makes a noice when i let off the gas like air is being pushed out underneath the car somewhere. What's the best way to try and find this leak?
put on jackstands (safely) car in neutral and start er up and listen around underneath the car. Only way i 100% know for sure. That or soapy water when it's cold to show you the exact location of the leak, but you'd have to do it fast or it'd just evaporate really quickly.