Flowmaster Flow FX Muffler 1998-pontiac-firebird-esi4271216 we're providing the core strength

we're providing the core strength your engine build demands

And weighing in at less than 8lbs per arm

Using the Centerforce centrifugal weights (where applicable)

and TIG welded for exceptional strength

80 and 150 micron filter elements

Flowmaster Flow FX Muffler 1998-pontiac-firebird-esi4271216 we're providing the core strengthFlowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. With a dual 3. 00 inch inlet and outlet size, this muffler is a great choice for large displacement gas engines. The interior features a large 3. 00 inch "straight through" X pipe style stainless steel perforated core, surrounded with high temperature sound absorption materials