I was getting on the highway today. As I was on the on ramp, I went through the gears as normal but as I was in third going to shift into fourth, the turbo was boosting and then the car made like a little honk. It was pretty loud and I know it came from the engine compartment. It didnt do it long, but it was loud enough. When it did that, the boost acted funny and wasn't doing its thing as it normally does. So I went back home and checked things out. I looked at my hoses and took a drive. 1st was fine, 2nd, and then third, and as I was boosting from third to fourth, it didn't make a noise but something made a noise like it was trying to boost but wasn't. From third to fourth is the only time that acted funny. Third to fourth is when my boost maxe out. I try to take it easy on the car. I dont go over 4,000 but that was the only time under boost that it made that noise, not in fourth or fifth