Includes Hybrid models. This Cat-Back(tm) system features a True Dual design with two full tail pipes that is unique in the industry. It was designed specifically for the Tundra 3.4L and delivers the classic S-Type sound without any drone. The system features a Merge X-Pipe for increased performance and improved sound. The system is finished off with 4.5" black chrome on T-304 stainless steel tips. Systems with right chrome on T-304 stainless steel tips and carbon fiber with black anodized center tips are also available. It is built with premium, high-quality austenitic T-304 stainless steel for a sharp appearance and long life. Our computer numerical control (CNC) manufacturing techniques ensures accurate fit and maximum performance. Mandrel bends ensure maximum flow & power. 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. System Features: Cat-Back(tm) Exhaust System 2.5" True Dual Design S-Type Sound Level No Drone Polyphonic Harmonizer Dual 4.5" Black Chrome On T-304 Stainless Steel Tips T-304 Stainless Steel Million-Mile Warranty