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.
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.
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Flowmaster® has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.
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I got my muffler in good timing, had it put on. Sounds good! I have a TV in my truck, and while driving, I do not hear it in the cab. A great muffler, a little more torque. Haven t tried top end yet.
CARiD.com was absolutely superb in helping me find the correct exhaust. It has a clean rumble and it fits perfectly in my brand new 2013 4-door ford f-150, just like they said it would.
I have been wanting to put this baby on my f150, then I bought it! At a good price! Shipping was fast and man!, when I put this on... OMG! She now purrs like a flying Lion!!! Thanks, guys.
I purchased these a couple months ago, but waited to write a review. I must say they are simply amazing on my Ford F-150 XTR truck, they sound mean, and have a deep growl. Took my buddy about hour and half to install. I noticed more power at the take off now. I just bought them mainly for the sound, I am not a ''stop an floor it'' kind of driver, but they are 10/10 on every aspect!
The installation was relatively smooth with the exception that the clamps just didn't seem to want to tighten enough to hold the system in place. I bought some regular 2.5" and 3" exhaust clamps and they worked much better than the clamps supplied with the kit. I had to fabricate some hangars because I already had an aftermarket exhaust on the truck and had pitched some of the stock hangar mounts. All in all, a great product and a good fit.
Exactly what I was looking for in a stainless tip! It adds the finishing touch to the factory pipe. Installation was very easy and only took a minute - I am confident that the retaining clamp will hold in place securely.