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🔥 Own the streets with the loudest, most aggressive Flowmaster roar!
The Flowmaster Super 10 Series Chambered Muffler delivers the ultimate race-inspired sound with patented Delta Flow technology that boosts exhaust velocity, horsepower, and throttle response. Crafted from durable 409 stainless steel and fully MIG-welded, it’s built to withstand extreme conditions while fitting a wide range of muscle cars, LS swaps, drag racers, and off-road builds. This muffler is the loudest in Flowmaster’s lineup, engineered for enthusiasts who demand to be heard and dominate every drive.












| ASIN | B003BZ9LQA |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | 776,763 in Automotive ( See Top 100 in Automotive ) 311 in Car Silencers |
| Brand | Flowmaster |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Configuration | Centre/Centre |
| Country Of Origin | Nepal |
| Customer Reviews | 4.8 out of 5 stars 913 Reviews |
| Global Trade Identification Number | 00700042023936 |
| Included Components | Flowmaster 843015 3 In(C)/3 Out(C) Super 10 409s Muffler |
| Item Dimensions | 35.8 x 25.1 x 11.4 centimetres |
| Item Shape | Oval |
| Item Type Name | Flowmaster 843015 3 In(C)/3 Out(C) Super 10 409s Muffler |
| Item Weight | 2.86 Kilograms |
| Item dimensions L x W x H | 35.8 x 25.1 x 11.4 centimetres |
| Item weight | 2.86 Kilograms |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 843015 |
| Manufacturer Warranty Description | 10 Year Limited Warranty |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | 843015 |
| OEM Equivalent Part Number | 843015 |
| UPC | 700042023936 |
| Unit Count | 1.0 count |
| Vehicle service type | Car |
O**K
Flow master is the Master !!
Mega producto!!! Superó mis expectativas y lo recomiendo al 1000% Lo instalé en mi Kia Sportage GTLine 2017 y suena increíble. Si buscas un sonido deportivo y te gusta pasar por túneles para escuchar ese sonido como carro de carreras no lo pienses más!!! Esta es la eleccion correcta
J**N
Loud but quiet
Used on a turbo 4 cylinder 90's Volvo. Compared to running an open 3" downpipe it reduced the rasp and kills the drone at cruising speeds. Still aggressive at full throttle.
M**.
The sound you're looking for!
Over the years I have tried many exhaust brands out there and always come back to Flowmaster. I like the traditional "flowmaster sound", deep and aggressive so my favorite has always been the original 40 series. I tried a 10 series for the first time last year on my Dakota R/T and was impressed. This time the application was for my 03 Suburban 5.3 with cats. I heard an identical truck with super 40 and no cats and loved the sound and at first wanted to do the same but instead decided to keep the cats and install a 3 inch (in and out center/center) 10 series and WOW ! I absolutely made the right choice ! Of my many vehicles I can say this is my favorite exhaust set up ! Very deep aggressive tone and very noticeable inside the truck but not so loud that you can't hold a conversation and the sound is GREAT! If you are looking for the very best of the iconic "Flowmaster sound" and are torn between 40, super 40, super 44 or 10, I ASSURE you from someone with years of exhaust and Flowmaster trials the 10 series is what you want! And it's not obnoxious in its sound level . It is definitely loud but even my fiancé loves it and loves driving it. If you have a similar truck I also suggest the Spectre cold air intake kit. It's the best $150 you'll spend and the two go well together . Your truck will exhale freely with the 10 series and should be made to inhale just as freely . Both of these together made a VERY noticeable HD gain , increased throttle response and even noticeable MPG increase! (Yes even a Suburban!). And the CAI actually does make the exhaust note slightly deeper. Stop reading reviews and watching youtube videos and get it right now ! You will not be disappointed (speaking for V8 applications )
M**N
Would buy again and again and again
Quality isnt cheap, you gotta pay for the good stuff and this product is absolutely amazing. Id give it a 50 out of 10. Amazing quality product and sounds incredible too. If i could id give it 10 starts and not 5
R**3
If you want loud and proud
The price. How it sounds.. love it on my 5.3 Escalade
Trustpilot
2 weeks ago
3 days ago