Flowmaster 50 Series Big Block Muffler - 3" Dual Inlet / 2.5" Dual Outlet H759C04 Proven to increase horsepower up

Proven to increase horsepower up to

35mm) minus spacer-thickness (i

351C-400M and 429-460 provide quicker response and better performance

Edelbrock carb

Closed Box

Flowmaster 50 Series Big Block Muffler - 3" Dual Inlet / 2.5" Dual Outlet H759C04 Proven to increase horsepower upThe 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV's, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Durable