This is an all stainless steel, mandrel-bent, cat-back exhaust system with polished stainless steel tips for the Mazda 3.

It features a 6x6x14" p-SS mufflers, a 4x4x14" p-SS resonator, 2.25" SS tubing, and a 4" rolled/slash/p-SS tip.

The installation instructions can be found here:
http://images.magnaflow.com/07techtips/pdfs/15861.pdf

You'll also find a copy of the dyno below!