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): 2.5 - EC-Approved: No - Resonated: No - Tips: Quad GT-100 Titanium - Feature 1: Sport Diff Models Only & Without Brace Bars