Flowmaster® 42441 - 40 Series Delta Force™ Aluminized Steel Oval Black Exhaust Muffler

20 reviews|Item # mpn4498129962
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Notes:
  • Adapters may be required
  • Installation may involve welding and cutting
  • Remember to check your local or state laws regarding vehicle noise restrictions and Emission Standards
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$101.95
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Vehicle Fitment

Chevy
Ford
GMC

Specifications

Muffler Series
40 Series Delta Force™
Inlet - Outlet Configuration
Offset Inlet - Center Outlet
Muffler Body Material
Aluminized Steel
Muffler Body Finish
Black
Muffler Inlet Diameter
2.25"
Muffler Outlet Diameter
2.25"
Muffler Body Height
4"
Connection Type
Pipe
Muffler Body Width
9.75"
Muffler Body Shape
Oval
Muffler Body Length
13"
Muffler Overall Length
19"
Muffler Sound
Aggressive / Loud
Muffler Structure
Chambered
Mount Type
Uses New Hangers
Tips Included
No
Case Exterior Length (in.)
13.00 in.
Case Shape
Oval
Inlet Diameter (in.)
2.25 in.
Inlet Location
Offset
Inlet Quantity
1
Internal Construction
Chambered
Muffler Finish
Black
Muffler Material
Steel
Outlet Diameter (in.)
2.25 in.
Outlet Location
Center
Outlet Quantity
1
Outlet Style
Standard, without tip
Overall Length (in.)
19.00 in.
Quantity
Sold individually.
Remanufactured
No
Reversible
No
Thickness (in.)
4.000
Width (in.)
9.750 in.

Features

  • Durable fully welded 16 gauge high-quality steel - two chamber race muffler
  • Good decibel reduction over open headers
  • No internal packing to blowout
  • Race-proven patented Delta Flow technology

Product Details

40 Series Delta Force™ Aluminized Steel Oval Black Exhaust Muffler (42441) by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 2.25". Muffler Outlet Diameter: 2.25". Muffler Body Length: 13". Muffler Overall Length: 19". Muffler Sound: Aggressive / Loud. Muffler Structure: Chambered. Muffler Configuration: Offset - Center. The Delta Force 40 series race mufflers utilize Flowmaster's patented Delta Flow technology and feature excellent power characteristics with good sound reduction qualities. Recommended for all racing applications where mufflers are required with a substantial decibel reduction over open headers. Please call the Flowmaster tech-line for assistance with specific decibel requirements and applications.

Flowmaster - Delta Flow Technology

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

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 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.

Part Number:
42441
UPC:
700042010295

Reviews

(20)
Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
/5
1-10 of 20 Reviews
5 of 5
Great Product
Easy to install if you can weld. Truck has a good sound now.
Posted by Joel (Springtown, TX) / January 03, 20182001 Volkswagen Jetta
5 of 5
40 Series
Great sound, great price, and great product!
Posted by Lucas (Wilton, CT) / July 27, 20132007 Chevy Impala
5 of 5
Can't Beat an Original
So many companies try to imitate the Flowmaster original 40 Series. They mostly fall short and you are stuck with the disappointment. The price at TRUCKiD is the most reasonable I found, and the product is the best, especially for American Muscle.
Posted by Lerma (Corpus Christi, TX) / December 12, 20121973 Dodge Charger
5 of 5
2019 Ram 1500 5.7 Hemi sounds great
Only took myself and another guy to install and sounds great!
Posted by Mike (Ogallala, NE) / April 11, 20252019 Ram 1500
3 of 5
Superior Sound
Just put this muffler on my truck with all new aluminized pipe from Cats. to bumper. When peeling off the rotted exhaust from my 2008 F150, I seen it was Flowmaster also..... The entire back of the muffler rotted out letting the right tailpipe drag on the road. Hope this holds up well. Hmmm. Sounds great though. I would have given a higher rating if there had been a Tshirt in the boxes.
Flowmaster® 425404 - 40 Series Aluminized Steel Oval Black Exhaust Muffler (2.5" Dual ID, 2.5" Dual OD, 13" Length)
Posted by Customer / December 24, 20242008 Ford F-150
4 of 5
Mufflers
I was a little sketched out but cause I never bought anything from this company but, they arrived in about 2 days and the boxes they came in were a bit ripped up and it looked like they been thrown around but the mufflers themselves were in great shape, I’m actually getting them on next week and I can’t be happier. IF your thinking about buying this item or just wanting to buy something off this site 100% do it it’s legit, it might hurt the bank a little but it’s worth it in my books. I definitely will be back buying items from here. DREAM BIULD HERE I COME LOL.
Flowmaster® - 40 Series Oval Black Exhaust Muffler
Posted by Dylan (Jonestown, PA) / April 10, 20222011 Ford Fusion
5 of 5
Sounds Great
This exhaust really makes the 351 in my F-250 sound awesome. Nice, throaty, husky sound. Love it.
Flowmaster® 425404 - 40 Series Aluminized Steel Oval Black Exhaust Muffler (2.5" Dual ID, 2.5" Dual OD, 13" Length)
Posted by David (Cleveland, OK) / March 21, 20221991 Ford F-250
5 of 5
Flowmaster Outlaw
Watched all the videos on the Flowmaster mufflers and went with the Outlaw, works great, thought it would have been a bit louder, love the sound and really has inproved proformence even more than I could have exspeted. Can't be happier. I would have liked it a bit louder, can't beat the profomence you get, hightly recomend the Outlaw!
Flowmaster® - Outlaw™ Round Race Black Exhaust Muffler
Posted by NICHOLAS (Waterford Works, NJ) / December 21, 20211998 Dodge Ram
5 of 5
Outlaw
First of all, I love this muffler. The sound is amazing. Install was pretty easy after busting my knuckles getting the stock muffler off. The only thing that I found that I would change is the clamps. The clamps wouldn’t get tight enough to seal the tailpipes and they can still be moved around. Other than that, it’s great.
Posted by Customer / September 30, 20212013 Ram 1500
5 of 5
Outlaw
First of I love the sound of this muffler! Install was a breeze after taking off the stock muffler. The only thing that I found I didn’t like were the clamps. They didn’t get tight enough and could still move the tailpipes around. Other than that it’s perfect!
Posted by Bryce / September 30, 20212013 Ram 1500

Questions and Answers

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