Flowmaster Flow FX Muffler - 2-1/2 in Center Inlet - 2-1/2 in Center Outlet - 14 x 4 in Round Body - 20 in Long - Stainless 4X-Large Built in turbulators agitate fluid

Built in turbulators agitate fluid for maximum heat transfer

Pontiac: Bonneville 78 - 81

Machined for use with a stock LS3 style MAP sensor or Edelbrock #36019 that is mounted directly to the manifold

It provides an in and out port for installing an oil cooler in almost any application

Flowmaster Flow FX Muffler - 2-1/2 in Center Inlet - 2-1/2 in Center Outlet - 14 x 4 in Round Body - 20 in Long - Stainless 4X-Large Built in turbulators agitate fluidUniversal Muffler Not a direct fit. Some adaptation required. Flowmaster quality Straight through design Moderate exterior performance tone Product Description: Muffler Flow FX 2 1 2 in Center Inlet 2 1 2 in Center Outlet 14 x 4 in Round Body 20 in Long Stainless Natural Universal Sold Individually Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust