Chevy Corvette 2017, 304 SS Long Tube Exhaust Header Assembly with Factory Connect X-Pipe by Stainless Works®. Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated. Header Style: Long Tube. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention to the smallest detail using the latest technologies this Stainless Works product will provide reliable service for decades to come. THIS IS A RACE ONLY SYSTEM !! Other "Street legal" options available.