The search for the perfect exhaust system for the Dodge Durango SRT is over. Borla® gives you their take on how the Durango SRT should sound. This 2.75" diameter Cat-Back™ system was developed with performance and sound in mind on the 392 HEMI engine. The ATAK® sound level delivers an aggressive, head-turning sound that makes the 6.4L engine roar without any drone. It contains a Merge X-Pipe for increased performance and improved flow. The system features single 4.5" round black chrome on T-304 stainless steel tips on each tail pipe. Using BORLA® Stainless Steel Polish p# 21499 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. A system with bright chrome on T-304 stainless steel tips is also available. BORLA® Cat-Back™ & 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® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel and is mandrel bent to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. BORLA® exhaust systems are covered under our Million-Mile warranty with the following exceptions. BORLA® will warranty black coatings, tip finishes, and carbon fiber parts for one year.