German TUV Stainless Sport Exhaust: This OEM manufacturer built exhaust is one of the best sounding, fitting and looking exhaust systems that we have tested. Dyno tested at 3-5 HP at the wheels without any annoying resonance in the cabin. Weighs 26 pounds less than stock and is fabricated from 100% T304 Series stainless steel. The tubing is mandrel-bent with mirror-polished 3" tips. The mufflers are fabricated from heavy duty 16 gauge (not 22 gauge like our competitors that breaks/fails) T304 Series stainless steel. Imported from Germany.