EC-Type approved systems are those that comply with European Union rules for motor vehicles, vehicle systems and components. Features polished T-304 stainless steel tips. BORLA(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology is designed 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 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 & power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA(r) stands behind every system with a Million-Mile in the USA and Canada (1.6 million kilometer). Products sold outside of the USA and Canada carry a 3-year limited warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.