FLOWMONSTER MUFFLER - 3.00 DUAL IN/3.00 DUAL OUT - 5.00 x 11.00 OVAL CASE - STRAIGHT THROUGH PERFORMANCE - MODERATE SOUND - 409 STAINLESS STEEL;409 Stainless Steel construction for superior corrosion resistance and good looks; Interior construction features high-temp interior sound absorption material delivering a deeper, mellow exhaust tone ; Perforated High-Flow straight-through tube design for increased exhaust flow; Moderate increase in interior tone over most OE mufflers; A stainless steel performance muffler at an economical price; Internal Design is reversible allowing flexability to be installed in either direction; Sold Individually;