[MEDIK418]

I so sorry. . .I meant not to make assertions that the article did anything but seek a way to improve flow by installing the X-pipe. This was part of the reason for the original query. I cannot imagine adding anything in the way of an exhaust system that didn't flow better than a stock piece. Whether the X-pipe is actually better than an equal size H-pipe is yet to be seen by me. Increasing collector volume would be accomplished either way and in theory I suppose the results would be similar since scavenging shouldn't be affected by the reduced flow restriction the X-pipe might provide. Equalizing exhaust pulse reversion would seem to work better if it didn't have the crossover pipe to contend with and the right angles that go with it but then, I guess I need to go find that turnip wagon and climb back on afore I get myself in trouble. I merely offered the article and the information it provided along with a disclaimer for those who feel threatened by the written word.