Flowmaster 70 Series Big Block II Muffler - 2.25" Dual Inlet/2.25" Dual Outlet 20194MLK 2-layer lightweight construction 100% polyester

2-layer lightweight construction 100% polyester shell with 100% knitted mesh interior

Approved for use at Knoxville Raceway and World of Outlaws

insta-dapt 2-way radiator adapter

Dual return springs are connected to a universal return spring bracket to work with most carburetors

Suitable for use with AutoMeter Mechanical gauges

Flowmaster 70 Series Big Block II Muffler - 2.25" Dual Inlet/2.25" Dual Outlet 20194MLK 2-layer lightweight construction 100% polyesterThe 70 series utilizes Flowmaster's patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV's, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Durable Fully Welded 16 Gauge Aluminized Steel 3 Year Limited Warranty Aggressive To Moderate Exterior