Universal Parts

4" Universal Diesel Performance Muffler Material: Select from 409 Stainless Steel or Aluminized  Length: Select from 20" or 30"   Works on all 4" exhaust for Chevy/GMC Duramax 2500HD 3500HD Dodge Cummins 2500 3500 Ford Powerstroke F250...

4-1 Merge Collector Material: 304 Stainless Steel Sizes: 4 x 1.5" ID - 3" OD, 10" OAL  4 x 1.625" ID - 3" OD, 11" OAL 4 x 1.75" ID - 3" OD, 11.5" OAL 4 x 1.875" ID - 3.5" OD, 10.75" OAL 4 x 2" ID - 3.5" OD, 11.5" OAL 4 x 2.125" ID - 4" OD,...

Inlet ID: 4" Outlet OD: 5"