Quote Originally Posted by techinspector1 View Post
If you're talking about an X or H pipe between the banks of the motor, you may find that they're more about mellowing out the sound than they are about power. It is possible to over-scavenge and actually lose power down low in the rpm range with an X pipe. Not so much with an H pipe.
Yes I was talking about an X or H pipe. I've never heard of over scavenging, I'll do some more reading.