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

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

Double Swivel

Pontiac: Bonneville 78 - 81

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

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