The STM stainless steel cat-back exhaust for Evo 7/8/9 bolts directly to your factory cat or test pipe and even saves 14 pounds! Features full 3" mandrel-bent piping and tig-welded flanges with an Ultra-Quiet muffler for the perfect mix of street-ability and performance. All new mounting hardware is included along with three Remflex graphite gaskets for a leak-free install. We offer two different rear section designs to perfectly match your JDM or USDM rear bumper for a flawless look and fit! Vehicle Fitment: 2001-2006 Mitsubishi Lancer Evolution VII VIII IX For JDM Evo 7, Please select USDM rear bumper for proper fitment. Specs & Weights: • Weighs 21.5 Pounds (Including Hardware) • Factory Cat-Back Weighs 35.8 Pounds • Save 14.3 Pounds! • Hand Fabricated • Tig-Welded • Back-Purged • Full Stainless Steel • 3" with 2-Bolt Exhaust Flanges • CNC Flanges • O2 Bung • Gaskets and Hardware Included • Bolts to Factory Cat or 3" 2-Bolt Test Pipe Includes: (1) STM Three Piece Exhaust (3) 3" 2-Bolt Remflex Gaskets (6) M10 x 35 Bolts (6) M10 Nuts (6) M10 Flat Washers Shipping Times: 1-4 Weeks Hand crafted and welded in New York, please give our fabricators time to assemble your piece! https://youtu.be/ZE7w8mnZz9w