Headers begin life as a pile of 304 stainless steel tubing. Stainless Works has a dedicated area for installation of its products as well as fit-up for future products. The company will bring in a car and tack up pieces of straight tubing in the overall shape it thinks will work best. Though there is always a compromise between the ideal shape and what actually fits the car, Fuller told us the team tries to minimize the bends. "A 13-degree bend flows the same as a section of straight pipe as far as the exhaust pulse is concerned."