CORKSPORT 2010-2013 Mazdaspeed 3 - Axle Back Exhaust - Stainless Steel T304 (Axl-6-101-10) Stainless Steel T304 construction with 100mm stainless tips for corrosion resistance and a clean stylish look. Mandrel bent, true 80mm piping for increased flow and more power from your engine Muffler Delete Perfect option for customers running an otherwise stock exhaust. Replaces your muffler with a straight through pipe to create a deeper tone and remove exhaust restrictions Receive a 2 year warranty, full color installation instructions, all of the needed installation hardware