The AU wagon was sold primarily with the inline 6 cylinder motor, producing up to 172kw (depending on model and specification). The Manta exhaust for the AU ute delivers significant performance improvements over the stock exhaust system, including better response down low, increased overall power and torque, and a much improved exhaust note, without any drone. All pipework is mandrel bent, and a high-flow muffler ensures the noise level is not excessive. The full exhaust system with extractors will give the most noticeable increases in power and torque, while the cat back system is ideal if you are just looking for better sound, or a replacement for your stock exhaust system.