The new 5Zigen Race pipe for the GTR is designed to replace the factory cats and consists of dual 60.5mm piping, with integrated flex sections, which then merges into a single 80mm resonator and pipe. In addition, it weighs just 11 lbs, which sheds 28.9 lbs vs. the stock piece!

Contents : Front Pipe with flex sections and no catalytic converters for Competition Off road use only) * MAIN PIPE: SUS 304 1.0mm width * Diameter Spec: 60.5mm > 80mm W * WEIGHT: 5kg （OEM weight is 13.6kg) * Has two flex sections and a silencer.