SuperMAXX Stainless Catted Intermediate Section is an excellent way to complete your Dynatech Header System on your 2015-2016 Mustang. Designed with High-Flow metallic substrate catalytic convertors which flow 54% better than OEM, it's easy to see why this system is all about increased power. 100% Stainless Steel construction with a Limited Lifetime Warranty makes the SuperMAXX header second to none. With a unique 3.00" "Ball & Socket" connection to the header and 3.00" tubes, this makes a great combination for stock engines and/or upgraded power plants. With an exclusive design only from Dynatech, this system replaces the "suitcase" resonators and connects directly to the axle-back system. Fits with automatic or manual transmissions and takes about 5-7 hours to install. Comes complete with detailed, full color instruction manual for easy installation. O2 Extension cables, and all installation hardware are included. Designed for use with Dynatech Long Tube Headers (part number 722-74310)Product Description: 15 Mustang Intermediate Tubes w/CatsPit Stop USA offers Dynatech SuperMAXX Stainless Catted Intermediate Section - 2015-2016 Mustang 722-75320 at low everyday prices. Be sure to check out all our products from Dynatech including Dynatech Exhaust Intermediate Pipes.