DC Sports 4-2-1 headers feature equal length primary piping for optimum power across the entire RPM range, with the most noticeable gains across the mid to top end RPM range. Dyno-tuned and tested for performance, the headers also add a low sonic growl. Constructed from T409 stainless steel alloy with ceramic coating. Installation instructions and all necessary hardware included. Product Features:Dyno tuned and tested for performance across the RPM rangeConstructed of polished, ceramic coated stainless steelImproves throttle response with increased hp and torque Unique merge collector design increases ground clearance
