normal style="MARGIN: 0cm 0cm 0pt">With many years of experience, we have superiority in creating fully polished stainless steel exhaust systems. Japanese engineered using the minimum amount of pipe bends for greater exhaust flow, maximum efficiency is achieve. Top-end engineering features such as mandrel bending, robotic TIG welds, along with hand-crafted welding delivers proven performance and light weight. S7 series is constructed the finest grade SUS304 stainless steel and provides maximum power gains as well as rust resistance and weathering damages.