Exhaust cutouts

I guess if your racing competitively, then why have any pipes at all? I mean a beautiful, mandrel bent, expensive exhaust system would do nothing more than add weight. Weight is the real enemy of speed.

I would venture to guess that a tiny bit of turbulence isn't enough to matter to most of the people who drive their cars to the track. It's really all about the convenience of getting the car to breath, and making a quiet car noisy isn't it? That being said, all I have to do is crack the pipes open a tiny bit, and that turbulence your concerned about is gone. Sounds amazing as well.