Ford Expedition 5.4L Diesel 2003-2010, 70 Series Delta Flow™ Aluminized Steel Big Block Muffler by Flowmaster®, MILD SOUND, 3" Offset Inlet / 3" Center Outlet, 5" Thick x 10" Wide x 22" Case Length x 28" Overall Length. The 70 Series Big Block II Muffler uses a longer case for increased volume and added sound reduction that fits many applications that the wider 50 Series Big Block muffler won’t fit. It utilizes Flowmaster’s patented Delta Flow Technology for maximum efficiency and minimum interior resonance.
- Quiet Muffler for Trucks and Big Power Engines
- Three-Chamber Delta Flow Technology
- Fully MIG-Welded for Maximum Durability
- Finely Tuned on Dynamometer
- Race Proven Technology
- Available in 16-Guage Aluminized Mild Steel and in Stainless Steel
- 3-Year Warranty for Aluminized Mild Steel
- Limited Lifetime Warranty for Stainless Steel
The 70-Series was originally designed for trucks, giving them the powerful Flowmaster sound at low decibel and resonance levels. Despite being designed to be the quietest Flowmaster mufflers, they have been used in extreme racing applications where high horsepower engines demand a large sound cancellation chamber so as not to lose power or torque to meet noise regulations. The 70 Series mufflers are perfect for high performance street cars, most trucks, SUV’s, RVs and tow vehicles that require quiet operation with improved sound. These mufflers are constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability. 5" Thick x 10" Wide x 22" Long with inlet/outlet sizes from 2.25" up to 3".
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.144.99Brand: Flowmaster Part Number: 53071 UPC: 700042014477
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.Flowmaster® - 70 Series Delta Flow™ Diesel Big Block Muffler Reviews (10)
Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.Customers' rating: 5 OF 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYMustang Wake Up| Posted by Daryl P. | 2013 Ford Mustang (League City, TX)
The Flowmaster Outlaw Series exhaust is exactly what I was wanting! The sound is great and makes the car sound like a 5.0 L. Very deep growl but not too much! The fit was very good, but the weep holes in the tips are not perfect on the bottom, but I think it will be okay!Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYNot True| Posted by Tom S. | 2004 Ford F-250 (Effingham, SC)
This exhaust system is not from the cat back, there is a piece of pipe 22.5" long that they don't include. My muffler had a 11" piece of pipe welded to it, they illuminate it, witch is not a problem. I would have gave it a 5 star if not for that pipe.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYGreat Products and Excellent Service.| Posted by Darwin A. | 2000 Ford Explorer (Brooklyn, NY)
I installed the Flowmaster Delta 50 on my 97 Explorer because my old, original muffler had seen better days. What I didn't expect was for my vehicle to have such a noticeable increase in horsepower! I can't say enough about how great it sounds when I'm driving down the highway. It has a nice rumble that's noticeable but not too loud.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster| Posted by Ken E. | 2007 Ford F-250 (Harborcreek, PA)
I recently ordered a Flowmaster muffler from CARiD and the experience was a very good one. The order was filled very fast and sent. I received it in no time at all. It was in great condition and sound great on my truck, and I couldn't beat the price.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYHi| Posted by Jimmie W. | 1999 Ford F-150 (Port Gibson, MS)
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.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYBest Gentleman's Exhaust There Is!| Posted by Ryan T. | 2013 Ford F-150 (Indianapolis, IN)
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.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYGreatness| Posted by Nathaniel R. | 2001 Ford F-150 (Sunland, CA)
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.Was this review helpful for you? YesNo(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster| Posted by Rodney G. | 2013 Ford Focus (Cambridge, ON)
Installed this Force 2 cat back system on my 2012 Focus SE. Without a doubt, there is more airflow, throttle response, engine note and horsepower... I would recommend this system to enhance the direct injected 4-cyl. that Ford has to offer...Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2004 Ford F-150| Posted by Jared F. | 2004 Ford F-150 (Stratford, WI)
Easy to install. Sounds awesome with cool air intake. Sound will turn heads!Was this review helpful for you? YesNo
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