Originally Posted by
mlx50man
so like I said before its all about velocity and every set up is different and will react differently to different stuff.
Wes: you cant go wrong with flows (even though everyone has em)
lol
Velocity will have 90% of its efficiency within the headers only. Its theoretically impossible to have the same velocity passed the collectors with the entire exhaust being the same diameter. In order to maintain the same velocity the exhaust would need to get smaller and smaller toward the tail pipes.
If it was all about velocity then there would be no need for scavenging. A simple single exhaust would work if that was the case.
Hurst