Im new to the Evo game and recently my car backfired pretty loudly which started a loud sucking noise when driving upon being stupid and causing the car to backfire again a wire which lead to the boost gauge caught fire. The car sounds louder my first thought was a boost leak or I somehow blew the cat but after taking it to a mechanic he claims I blew the turbo and tried to sell me a $4k turbo. I've got a hot date on valentines day and any fix or help would be amazing. Any thought on what it could be videos down below. Thanks in advance 
Before
After
After w reving
Engine noise
Before