Borla is internationally known as the most winning exhaust on the market, so why not add this history to your high performance Mazdaspeed3? BORLA exhaust systems feature patented straight-through and multi-core technology to unleash horsepower stifled by the stock exhaust design. Each borla exhaust is built from premium Aircraft-Quality T-304 Stainless Steel to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Borla also backs all of their exhaust systems with their exclusive Million-Mile Warranty, so you can relax with the knowing that your exhaust will last for the life of your car and longer! The Borla exhaust for the 07-08 Mazdaspeed3 features an embossed 4" stainless steel rolled exhaust outlet, for the performance look your 'speed 3 deserves.