Originally posted by mcgainer: I'll play devil's advocate here...
I'm looking at the optimized Y-pipe I bought from Warmonger (thanks Tom!)...and I'm not really seeing any huge difference between what's on my desk and what I'm looking at in those pics (on the front 1/2). In fact..I am not to crazy at all about the part after where the two primary tubes come together...the Y looks nice...but the real critical part is where it goes into the single outlet...it looks kinda squarish to me (right before the flex pipe)...and should taper as much as possible.
This is the difference between your and these. Its equal length and allows the gasses to mix instead of being forced into each other. This allow for smoother flow, better scaviging(sp?) and NO DRONE. And antoher difference between this one and your is that these give about 4-7lb. MORE torque and 2-4 MORE HP than your moddified one.
