BORLA(r) is proud to present their exhaust systems for the Ford Explorer ST, Explorer Platinum, and Lincoln Aviator. Our Cat-Back(tm) systems have been specifically developed for the 3.0L V6 EcoBoost engine with performance and sound in mind. The S-Type Cat-Back(tm) system delivers a balanced, sporty sound without adding any drone inside the vehicle to ensure an enjoyable driving experience. The front muffler contains an internal H-Pipe for increased performance and improved sound. This system features black chrome on T-304 stainless steel tips, but is also available with bright chrome on T-304 stainless steel or carbon fiber tips. Using BORLA(r) Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. Our exhaust is constructed using premium T-304 stainless steel and bolts on to the factory system for stress-free installation. Add power and a balanced, sporty sound to your vehicle, bolt on a BORLA(r). Cat-Back(tm) Exhaust System S-Type Sound Level No Drone Quad 4" Black Chrome On T-304 Stainless Steel Tips Bolt On Installation T-304 Stainless Steel Construction Million-Mile Warranty Best of all, BORLA(r) stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.