FLOWMASTER® - 40 Series Original Muffler

Ford F-150 1977-1986, 40 Series Original Muffler by Flowmaster®, AGGRESSIVE SOUND, 2.25" Offset Inlet / 2.25" Center Outlet, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. This is the muffler that launched the success of Flowmaster. It is an aggressive sounding street/strip muffler that delivers the famous powerful “Flowmaster Sound”. If you really want to hear that great muscle car tone both inside and outside the vehicle, this is the muffler for you.

Features:

• The Original High Performance Flowmaster Muffler
• Aggressive Sound for the Enthusiasts Who Love Their Exhaust to be LOUD
• Made in 16-Gauge Aluminized Steel or 409S Stainless Steel
• Fully MIG-welded for Maximum Durability
• Limited Lifetime Warranty on Stainless Steel Mufflers

The Super 40 Series mufflers are designed for the true performance enthusiasts. The flexibility and control offered by the unique Flowmaster technology has been used to build a muffler specifically for high horsepower road cars. The exterior sound has the exciting tone of a true-blooded racing engine, but subdued to legal limits. As even the most enthusiastic performance engine fan tires from constant high sound volume, the Flowmaster technology also has been used to tune the resonance sounds that reach the interior of the vehicle to a comfortable level, allowing the performance car driver to enjoy the racing music for hours on end without strain.

All Flowmaster mufflers are tuned for maximum performance. All Flowmaster mufflers produce a beautiful deep performance tone. Choosing the right Flowmaster muffler is not a technical decision – it is all up to your personal taste. It’s A Sound Decision®.

Flowmaster mufflers differ in technology and tuning, and thus in tone and character, to give your performance engine a sound to your personal liking.

Flowmaster mufflers employ two unique technologies developed by the company; the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile, and gives such a high degree of control, that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications where maximum silence and minimum heat emissions are prime considerations. Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle, Flowmaster always has the right muffler for you.