Originally posted by sook
AEON,
This was explained in very simple terms to me, someone correct me if I am wrong, fat pipe means more of a torque pipe and long skinney means high end pipe.
The RD Logics pipes look absolutely identical to each other. The only way to tell is by inspecting the badge. The Turbo is supposed to work well for turbo-plugged 5-port7-port/modified engines. The standard was designed for stock 3-ports and provides a tad more low-end. It's all up to you. How big is the track? Does it have a long straight where you can wind out the engine? FWIW, I am using the turbo pipe w/my Ritchy RTO.