The 40 Series Delta Flow muffler utilizes Flowmaster's original design, developed over 25 years ago. It's chambered internal design offers a deep, powerful tone that screams performance for your car or sport truck. The 40 Series muffler's internal design tunes your vehicles exhaust tone for that unmistakable "Flowmaster" sound. It also allows for unrestricted exhaust flow increasing torque and horsepower numbers. The 40 Series Delta Flow muffler has a case dimension of 13"L x 9.75"W x 4"H, and and overall tip to tip length of 19". They are available for 2"-3" exhaust systems. Flowmaster offers the 40 Series mufflers in aluminized steel as well as 409 Stainless Steel for unmatched corrosion resistance.
Flowmaster is offering a lifetime limited warranty on their stainless steel 40 Series Delta Flow Mufflers and a 3 year limited warranty on the aluminum 40 Series Delta Flow Mufflers.
Flowmaster mufflers are designed to work with new or existing exhaust systems. They offer slip on installation and can be welded or clamped into place. Due to the use of heavier materials, Flowmaster recommends spot welding the joints when using clamps. On some applications it will be necessary to cut or splice when adding Flowmaster mufflers to an existing exhaust system.