MagnaFlow Exhaust Products 15145 MF Series Performance Cat-Back Exhaust System 2.5 in. Incl. Tubing/5x11x22 Muffler/MidPipe/Tailpipe/4 in. Round Tip Single Straight Pass. Side Rear Exit Stainless MF Series Performance Cat-Back Exhaust System 100% Stainless Steel, Axle-Back 5 x 11 x 22in. Muffler; 2.5in. Tubing; 4.0in. Polished Tip Lifetime Warranty Dyno Tested And Proven To Make Power Great Sound, Has A Smooth, Deep Tone.