edge4628

Ok so my friend ran my car straight into the curb yesterday, and there was no damage so it was cool, but the next run i did whenever i accelerate there is this whistling sound kind of like a turbo on a real car, but the more i accelerate the higher pitch it gets. What do you guys think?

And question number 2 I was looking at my car today (Tornado BB) and i noticed that right before the exhaust pipe goes into the blue sleeve to the header there is what appears to be a large bubble, what do you think this coudl have been caused from? Its been staying mostly in the 200-230 range for temp.