Half asleep myself, I thought I said something. There's no catalytic converter and there's a small (maybe a quarter sized) hole in the muffler. It sounds a little loud when I am gassing it but that's it. I felt a tiny pull ONCE when I had it in the highway and I really pushed it in the low gears. Lights work fine, and I just bought a bottle of headlight de-fogger, which I think might not be strong enough.