Magnaflow exhausts feature all stainless steel construction and mandrel-bent tubing for superior flow. This true-dual cat-back exhaust system sounds awesome and includes polished stainless steel tips. The system adds 10 horsepower to the rear wheels and 13lb. of torque! Features: 2½" stainless steel mandrel bent tubing Dual 2½" inlet/outlet high polished resonator 2 - 2½" inlet/outlet high polished mufflers Dual stainless steel tips The Magnaflow "Wide Open" Performance Difference: All Stainless Steel or Aluminized Steel: The MagnaFlow muffler is encased in an all stainless steel or aluminized body as well as end caps and stainless steel perforated core. This steel reflects heat and resists corrosion better than cold-rolled steel. It also retains the finish longer, adding to MagnaFlow`s long life and clean appearance. High Temperature Acoustical Absorbing Material: Packed between the steel mesh and the steel shell is a high temperature acoustical absorbing material. This dense wall of fiber filters out the harsh exhaust vibrations producing MagnaFlow`s rich, powerful, performance tone. Stainless Steel Protective Mesh: The core is wrapped with stainless steel mesh that warms up quickly and maintains the muffler`s optimal temperature for exhaust movement. The mesh creates a porous barrier that allows sound vibrations to pass freely into the acoustical absorbing material inside yet prevents blowout and deterioration of the absorbing material. All Welded Lap-Joint Construction: The 1/2" overlapped metal-to-metal construction is used on all mufflers. This 1/2" overlap of steel occurs at every joint, creating a stronger surface-to-surface bond than mufflers employing only a rolled edge joint. The lap-joint is completed using a smooth, continuous mig weld that seals the system and further strengthens the joint. Straight-Through. No Restrictions: MagnaFlow’s one piece perforated stainless steel core lets exhaust gasses fly right through. Nothing gets in the way to slow them down. You won’t find any pressed-in louvers causing turbulence here. No louvers. No baffles. No sharp turns. MagnaFlow’s straight-through design improves exhaust flow to increase torque and horsepower