Flowmaster 70 Series Big Block II Muffler - 2.25" Dual Inlet/3" Center Outlet H774001S Adjustable for length and sold

Adjustable for length and sold in pairs

2200 / 6100 RPM

3/8in hose barb

Replacement Seals

Flowmaster 70 Series Big Block II Muffler - 2.25" Dual Inlet/3" Center Outlet H774001S Adjustable for length and soldThe 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 Stock to Mild Exterior Exhaust