The Milltek Cat-Back exhaust system is perfect for those looking to enhance the sound and appearance of their vehicle. It allows drivers to choose their preferred volume level and achieve a more aggressive exhaust tone. All components are made from 304L Aircraft Grade stainless steel, providing exceptional strength and durability even under harsh conditions. Specifications - Pipe diameter (inches): 3.15 - EC-Approved: No - Tips: GT-100 Cerakote Black - Feature 1: Valved