BBK 2015 16 Ford Mustang GT 5.0L 1 3 4 Tuned Length Header System (Ceramic) Gigabyte X670E AORUS Master Review Board Software TechPowerUp. THESE BBK PERFORMANCE SHORTY TUNED LENGTH EXHAUST HEADERS ARE DESIGNED AND CONSTRUCTED AS DIRECT FIT REPLACEMENTS FOR ALL 2015 UP MUSTANG GT APPLICATIONS. EACH HEADER IS MANUFACTURED WITH 1 3 4 INCH CNC MANDREL BENT TUBING THAT OFFERS UNRESTRICTED EXHAUST FLOW FOR INCREASED HORSEPOWER AND TORQUE OVER FACTORY OEM MANIFOLDS. BBK TUNED LENGTH HEADERS OFFER IMPROVED SCAVENGING WAVES FOR BETTER COMBUSTION; WHICH LEADS TO IMPROVED PERFORMANCE AND FUEL ECONOMY OVER STOCK OR EQUAL LENGTH HEADERS. AS WITH ALL BBK PERFORMANCE EXHAUST HEADERS THEY FEATURE A 3 8 INCH LASER CUT FLANGE FOR ADDITIONAL STRENGTH AND A GUARANTEED LEAK FREE FIT. ALL HEADERS ARE ROBOTICALLY AND PRECISION HAND WELDED AND THEN PRESSURE TESTED TO ENSURE YEARS OF RELIABILTY AND PERFORMANCE IN THE REAL WORLD. ALL BBK EXHAUST HEADERS ARE AVAILABLE IN A BRIGHT CHROME OR POLISHED SILVER CERAMIC COATED FINISH AND INCLUDE NEW EXHAUST HEADER GASKETS; HEADER BOLTS AND HARDWARE TO COMPLETE THE INSTALLATION. Polished Silver Ceramic Finish All Required Gaskets and Hardware Included Designed and Manufactured in USA This Part Fits: Year Make Model Submodel 2015 2017 Ford Mustang GT 2015 Ford Mustang GT 50 Years Limited Edition 2015 2017 Ford Mustang GT Premium