FLOWMASTER 60 SERIES DELTA FLOW MUFFLER, ALUMINIZED STEEL, BLACK, SOLD INDIVIDUALLY -- 2 in. inlet and outlet diameter; Single center inlet and outlet configuration; 5 in. thick x 10 in. wide, 13 in. case length, 19 in. overall length; Oval casing; Chambered internal construction; Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability; Incorporates Flowmaster's Delta Flow technology to produce a mellow tone, improved power and throttle response on smaller displacement 4 and 6 cylinder vehicles; Reduces interior resonance; Can create deeper tone by adding larger diameter tail pipe and Flowmaster stainless steel tip; Requires welding; With Flowmaster's limited 3-year warranty.