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Flowmaster 8425454 Super 44 Series Chambered Muffler

Brand: Flowmaster

4.6 76 ratings

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$111.15

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Purchase options and add-ons

Brand	Flowmaster
Item dimensions L x W x H	20.2 x 10.1 x 4.5 inches

Material
Plastic

Item Weight
9.45 Pounds

About this item

Stainless Steel Construction
Aggressive Sound Performance Tone
Race proven Delta Flow technology
Flowmaster Reliability

› See more product details

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Flowmaster 8425454 Super 44 Series Chambered Muffler

$111.15

Get it as soon as Monday, May 13

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Walker 41809 Exhaust Pipe Spout 2.5" Inlet (ID)

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EVIL ENERGY Exhaust Clamp, Lap Joint Band Clamp Stainless Steel (2.25 Inch,2Pcs)

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Top Brand: Flowmaster

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10K+ customers rate items from this brand highly

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Product Description

Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler we've ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.

Product information

Technical Details

Manufacturer

‎Flowmaster

Brand

‎Flowmaster

Model

‎8425454

Item Weight

‎9.45 pounds

Product Dimensions

‎20.2 x 10.1 x 4.5 inches

Country of Origin

‎USA

Item model number

‎8425454

Is Discontinued By Manufacturer

‎No

Exterior

‎Painted

Manufacturer Part Number

‎8425454

OEM Part Number

‎8425454

Additional Information

ASIN

B00SYGN55E

Customer Reviews

4.6 76 ratings

4.6 out of 5 stars

Best Sellers Rank

#392,017 in Automotive (See Top 100 in Automotive)
#162 in Automotive Performance Exhaust Mufflers

Date First Available

January 30, 2015

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

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Flowmaster 8425454 Exhaust Muffler

Compare with similar items

	This Item Flowmaster 8425454 Super 44 Series Chambered Muffler	Recommendations Universal Exhaust Muffler with Aggressive Sound, Anti-corrosive Muffler, Chamber Performance Mufflers for Cars, Trucks(3" dual in \| 3" dual out \| overall 23")	dummy NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,OVAL,BLACK,DUAL 2.5" INLET & OUTLET,19" OVERALL LENGTH	dummy Flowmaster 8430452 Super 44 Series Chambered Muffler	dummy Flowmaster 8525454 Super 40 Series Chambered Muffler	dummy Flowmaster 8425154 Super 10 Series Chambered Muffler
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$111.15	-19% $56.99 List: $69.97	$103.95	$122.95	$155.09	$99.95
Delivery	Get it as soon as Monday, May 13	Get it as soon as Monday, May 13	Get it as soon as Monday, May 13	Get it as soon as Monday, May 13	Get it May 10 - 13	Get it as soon as Monday, May 13
Customer Ratings	4.676	4.4193	4.785	4.7133	4.7140	4.7763
Mileage	—	4.6	4.2	4.5	—	4.3
Value for money	—	4.6	5.0	5.0	—	4.6
Easy to install	—	4.3	4.6	4.7	—	4.4
Noise level	—	4.2	—	4.7	—	4.6
Sold By	Amazon.com	TECTRUC	RD Parts	Amazon.com	DotComParts, Inc.	Amazon.com
material	Plastic	Aluminum	Alloy Steel	Plastic	Plastic	Plastic
weight	9.45 pounds	—	—	8.8 pounds	12.15 pounds	6.5 pounds
shape	—	Oval	Oval	Oval	Oval	Oval

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Customer reviews

4.6 out of 5

76 global ratings

1 star

How customer reviews and ratings work

Customers say

Customers like the sound quality and quality of the muffler. They mention that it has a great sound, with enough rumble to sound good, and that it's not overly loud.

AI-generated from the text of customer reviews

31 customers mention24 positive7 negative

Customers like the sound quality of the muffler. They mention it has a nice deep tone, but is not overly loud. Some say that the tone is good at idle but not real loud until you floor it or hit a passing vehicle. Overall, most are satisfied with the sound and fit of the product.

"...Little drone at 1700 to 2000 rpms. Great sounding exhaust without it being just ridiculous and not being able to be a daily driver." Read more

"...Loud enough to hear well, but not loud enough to drone on the highway.Note: the muffler I received was painted silver, not black." Read more

"Good tone at idle but not real loud until you floor it or hit a passing gear and it sounds awesome...." Read more

"...Gives it a cool classic muscle sound." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the quality of the muffler. They mention that it is a good product, it sounds great, and it is well welded.

"...I love how it sounds. It's a nice, deep tone. I'm not sure I would describe it as throaty; it's more of a smooth tone...." Read more

"Great, throaty, deep tone muffler. It was a little quieter than I was expecting on my 6.0 GMC Sierra but still a fantastic sound...." Read more

"...Mine came black like the picture. It also welded up nicely...." Read more

"This super 44 is awesome it makes my truck sound the best it's ever sounded. Good deep rumble." Read more

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Top reviews from the United States

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Clifton M. Treml

Super 44 exhaust muffler

Reviewed in the United States on October 21, 2021

Verified Purchase

Great sounding exhaust muffler, had the rough country cat back dual exhaust and was too quiet for my liking. I could barely hear the exhaust so I did my research and the super 44 was what I was looking for as far as from reading and videos done to show the sound. Little drone at 1700 to 2000 rpms. Great sounding exhaust without it being just ridiculous and not being able to be a daily driver.

Helpful

Matt

Great Choice For a 454

Reviewed in the United States on March 7, 2017

Verified Purchase

I just installed this on my 1996 Suburban K2500 with the 454. I love how it sounds. It's a nice, deep tone. I'm not sure I would describe it as throaty; it's more of a smooth tone. With my stock cats still on, it's a good moderate volume level. Loud enough to hear well, but not loud enough to drone on the highway.

Note: the muffler I received was painted silver, not black.

One person found this helpful

Helpful

Barbara Coker

Flowmaster dual inlet/outlet Super 44 muffler

Reviewed in the United States on February 16, 2021

Verified Purchase

Good tone at idle but not real loud until you floor it or hit a passing gear and it sounds awesome.Installed on a '97 Silverado C1500 5.7L,true dual exhaust and shorty headers with 4" tips.

Helpful

qcha2009

Awesome muffler.

Reviewed in the United States on August 10, 2015

Verified Purchase

Awesome muffler ...I researched and shopped around and amazon was the best price ..... but this thing rocks !! I had the single to dual super 40's and it had too much of the high aggressive sound so I opted to go with the deep and rich sound of the 44"s when i converted to true dual. my only regret is not putting in the X pipe off the bat but no worries i have one on the way !! Oh and don't forget to shop online for some high flow cats as well then you will be smiling like a kid in a candy shop :)

4 people found this helpful

Helpful

Brittany Lake

Flowmaster Super 44

Reviewed in the United States on July 1, 2019

Verified Purchase

Sounds great! I have this dumped before the rear axle on a 98 chevy k1500 with a 350 and was way louder and deeper then the glass packs that were on it. I am guessing if anyone is complaining that it is to quiet, they probably also have factory resonators still on their exhaust system. Gives it a cool classic muscle sound.

Helpful

Nate

If you're not using it for show it's a fantastic muffler! It's silver not black. Slag splatter near all welds.

Reviewed in the United States on November 20, 2016

Verified Purchase

Great, throaty, deep tone muffler. It was a little quieter than I was expecting on my 6.0 GMC Sierra but still a fantastic sound. The picture is deceiving making it look black compared to the obvious silver color of others. I was hoping for black since my entire truck is Linex coated in flat black. The color is actually the typical silver exhaust color. I just sprayed it with clear black high heat paint. Still very well made. It is not a show quality muffler due to welding slag splattered all over near welds but not an issue for me. It also comes with huge stickers marked inlet on both inlet pipes. I'm sure they are there to try avoid someone trying to warranty the muffler after they installed it backwards but they are impossible to get off without leaving the dreaded white sticky remains of paper stickers. The word INLET is stamped on the inlet side which should be enough. If you don't know to look for the inlet side, you shouldn't attempt to install it on your own. Overall a very good sounding, quality muffler.

2 people found this helpful

Helpful

Kevin Forrest

good quality

Reviewed in the United States on July 26, 2020

Verified Purchase

Sounds great! A little loud, but I have headers and open cats...

Helpful

mohanad

Five Stars

Reviewed in the United States on September 17, 2016

Verified Purchase