Bashing headers

http://youtu.be/azPKIjxmmdU

 

Saw this. It was very interesting, but i guarantee you its not the same for all applications. Some will have an effect.

 

Basically, it works. The reason it works is obvious. The header's primaries were too large a diamerter for each cylinder. Crushing increased scavenging to point, before they were beat to much.

A laminar flow test or CFM test would prove that they were being under utilized. It has already been brought up by plenty of engineers in dicussion with them. They even agreed.

Simple before and after pinches readings of primary temperature changes, would have also been helpful in showing loss of flow due to resrtictions. With a laser temp gun or similar device.

The average "Joe" might find this quite useful in the fitment needs.