Header design ?

I am currently shopping for a set of headers for my 2012 Grand Sport and while doing so I came across the system described below that are also available and was wondering what the pros/cons were with a system of this design as compared to the usual 4 tubes into a 3" collector.Members and vendors input welcomed and appreciated.
C6 Corvette Equal Length Tri-Y Headers. The Tri-Y Header design take proper exhaust flow to an entirely new level of performance by creating superior exhaust savaging in their 4 into 2 into 1 construction. The exhaust pulses from each individual cylinder are optimized to suck air into the combustion chamber from the intake. This creates a much more efficient power curve giving you better HP and Torque across the entire curve. These Corvette Headers give you much more efficient power and a greater amount of Torque under the curve, making the power more usable and available at a lower RPM. By reducing pumping loses, you increase the exhaust velocity.








