This system comes with black chrome on T-304 stainless steel tips. ECE approved systems are those that comply with Economic Commission for Europe (according to ECE-R59) rules for motor vehicles, vehicle systems and components. System has Active Exhaust Valves. BORLA(R) Cat-Back(TM) and Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(R) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit.
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This Part Fits:

Year	Make	Model	Submodel
2019-2020	Ford	Mustang	Bullitt
2018-2023	Ford	Mustang	GT
2018-2023	Ford	Mustang	GT Premium
2021-2023	Ford	Mustang	Mach 1