yeah well pulling out of my dirveway sounds like im drag racing with teh current setup... im not really one of those guys... i dont understand how i would lose power anyways though... if ya think about it if the exhaust isnt being funneled into one pipe and has a clear path (shorter for the right side in the 2 to 1) and should free flow (since its not baffeled (at least i dont think) but is a straight pipe with fiberglass packing around the inside of it..

 

the two into one gives u back presure where the straight pipes do not.