Hey everyone hopefully someone can help me out. Long story short I have a bone stock 98 S70 T5. Stage 0 is complete and I am completely **** with routine MX. That being said I had the vaccum line to the wastegate let go while I was overtaking on the highway today and my boost spiked to unsafe levels. Now the engine has a light tapping coming from the top end. Any ideas? Lifter, bent valve, etc? Thanks!!

 

Who knows. You can post a video so we can hear it.