Full stainless steel provides super light weight and extensive durability. The highest welding technology brings 1.0mm pipe thickness to circuit quality. 5Zigen pursues maximum performance, for example, use of hollow stainless pipe hanger for maximum weight reduction. This product has been tuned to deliver the best sound and performance. The inner structure is to allow exhaust to flow at the highest rate possible. Piping joints are flangeless due to the significant weight reduction. Inserting two ends together as used in racing to allow simpler structure and also avoid pipe cracks. A Carbon gasket is used at pipe joints to reduce the chances of exhaust leak. This product is over 50% lighter than most exhaust systems. This exhaust is full stainless steel with style. This will give you high peak power gain without losing low and mid level torque. This exhaust creates a specially tuned high pitched sound that is music to the ears. Piping 2.38-2.75 inches... Tip 4-6 inches. Sizes depend on turbo application.
