MagnaFlow Exhaust Products 15171 MF Series Performance Cat-Back Exhaust System 3 in. Incl. 5x11x22 Muffler/Resonator/Tailpipe/5 in. Round Tip Single Pass. Side Rear Exit Stainless MF Series Performance Cat-Back Exhaust System 100% Stainless Steel, Axle-Back Stainless Steel; 3 in Tubing; 3.5 in Tip; Single Passenger Rear Exit Lifetime Warranty Dyno Tested And Proven To Make Power Great Sound, Has A Smooth, Deep Tone.