i was driving my car today and i got on it a little bit and after i did i noticed this weird winding noise coming from under my hood. I pulled over to check my vac. lines and upper hard pipe but everything was good... i noticed a noise coming from my intake... my turbo is blowing air out of my cold air intake... what could be causing this

 

wow i feel like an idiot now... but im happy i was scared as hell... it was my hot side hard pipe that blew off... lol