3" Stainless Steel Dump pipe & High Flow Cat KitFeatures Polished 304 stainless steel Dump pipe with 100 cell metallic cat 3" reducing to 2.5″ outlet to adapt to factory cat back system Specification Part No: ES-MZ3-05-KITB Vehicle Model: 3 Diameter [in]: 3-2.5 Material: Stainless Steel Important Information:Image might not reflect actual exhaust system. Shipping times can vary due to size, destination and availability. Upgrade your Mazda 3 with this durable and high-performing dump pipe and high flow catalytic converter kit. Made from polished 304 stainless steel, it includes a 100 cell metallic cat and features a 3-inch to 2.5-inch outlet to easily adapt to your factory exhaust system. Not only will it improve your vehicle's performance, but it's built to last. Please note that the image may not accurately represent the actual product and shipping times may vary depending on size, destination, and availability.