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Availability:
In Stock.
Arrives
Wednesday, Oct 28
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At a glance
- Condition
- New
- Color
- Center In / Center Out
- Dimensions
- 14.1 x 9.9 x 4.5 in
- Weight
- 2.86 kg
- Material
- Stainless Steel
- Vehicle Service Type
- Car
- Configuration
- Center/Center
- In the box
- Flowmaster 843015 Super 10 Muffler 409S - 3.00 Center IN / 3.00 Center OUT - Aggressive Sound
Features 5
- RACE-INSPIRED PERFORMANCE DESIGN: Flowmasters loudest, most aggressive chambered muffler, built for extreme tone and raw street presence. Ideal for muscle cars, LS swaps, lifted trucks, drag cars, retro-mods, and off-road builds. Built for hardcore enthusiasts who want to be heard before theyre seen. This muffler makes no apologies for being loud.
- LEGENDARY DELTA FLOW TECHNOLOGY: Patented internal chambered muffler design increases exhaust velocity and reduces back pressure for maximum power and performance.
- PROVEN PERFORMANCE: Enhances exhaust flow to boost horsepower, torque and increased throttle response.
- BUILT TO LAST: Constructed from premium 409 stainless steel for ultimate durability and fully MIG-welded to withstand extreme heat, vibration, and tough driving conditions.
- UNIVERSAL FITMENT: Designed with a short case length to accommodate a wide range of custom builds and modified exhaust setups, available in multiple inlet/outlet sizes and configurations.
Description
Most Aggressive Sound Loudest Flowmaster muffler. Compact single-chamber design with an open-pipe tone. Signature Sound Bold, unmistakable muscle-car tone. Delivers classic Flowmaster performance sound. Deep, Aggressive Tone Compact, powerful design with Delta Flow tech. Delivers rich, aggressive street tone. Straight-Through Design Affordable straight-through muffler with a deep, mellow tone for modern cars and daily drivers. Delta Flow Design Three-chamber design with Delta Flow tech delivers power, performance, and a mellow tone. Super 10 Series Original 40 Series Super 44 Series Super 40 Series Flow FX
Specs 23
| Brand | Flowmaster |
|---|---|
| Material | Stainless Steel |
| Item dimensions L x W x H | 14.1 x 9.9 x 4.5 inches |
| Vehicle Service Type | Car |
| Item Weight | 2.86 kg |
| Brand Name | Flowmaster |
| Manufacturer Part Number | 843015 |
| UPC | 700042023936 |
| Manufacturer | Flowmaster |
| Item Highlight | Super 10 Series, Race-Inspired Sound, 409 Stainless Steel - Muscle Cars, LS Swaps, Drag Cars & Off-Road Builds (843015) |
| Global Trade Identification Number | 36 |
| Number of Items | 1 |
| Item Type Name | Flowmaster 843015 Super 10 Muffler 409S - 3.00 Center IN / 3.00 Center OUT - Aggressive Sound |
| Model Number | 843015 |
| Unit Count | 1 Count |
| Manufacturer Warranty Description | 10 Year Limited Warranty |
| Item Dimensions | 14.1 x 9.9 x 4.5 inches |
| Compatible with Vehicle Type | Car |
| Configuration | Center/Center |
| OEM Equivalent Part Number | 843015 |
| Automotive Fit Type | Universal Fit |
| Material Type | Stainless Steel |
| Shape | Oval |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Oct 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
It's a Flowmaster!
Color: Center In / Center Out
What more of a review do ya need other than the name Flowmaster?! The name is synonymous with quality, durability, dependability, performance, sexy and LOUD AF!! This one has a very loud cold start and @mid to high rpm but reasonable at idle and low rpm. You might only drive your neighbors nuts at the cold start for 5 minutes but it calms down as it warms. It's a Flowmaster so no worries about fit or quality. You get what the business has bled for, amazing performance! Best bang for your buck! No red woodpeckers can match the sound of a 2 chamber 10 series! Also I side exited my 2011 Silverado with a hole made 3" catback using this 3" single in 3" single out FM 10 series. Oh boy does it sound great! And stickers of course are on the truck and toolbox!
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Reviewed in the United States on November 30, 2024 by RickyBobbyinc
All most open headers
Color: Center In / Center Out
They sound great.
Reviewed in the United States on October 7, 2026 by Ron
Definitely recommend
Color: Center In / Center Out
Awesome sounding with my 4.8l ls engine
Reviewed in the United States on August 11, 2026 by Zachary Mathews
The sound you're looking for!
Color: Center In / Center Out
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 )
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Reviewed in the United States on March 4, 2015 by Matt A.
If you want loud and proud
Color: Center In / Center Out
The price. How it sounds.. love it on my 5.3 Escalade
Reviewed in the United States on April 30, 2026 by Rickk3
Not too loud decent sound.
Color: Center In / Center Out
A little quieter than I’d prefer but sound pretty good for my setup.
Reviewed in the United States on April 14, 2026 by Matt
super 10s are my top choice
Color: Center In / Center Out
2019 Chevy Silverado trail boss custom. Ok so let me say I have put these on all my V8s I have owned. Super loud. Deep and throaty. adds a little crackle. Design and construction are perfect for my environment summer and winter with salt. Stainless doesn't rot. I recommend removing the 6 noise damping screens around the tail pipes. I cut them out and put in new pipe. It was to quite for me. Bad is Amazons vehicle fitment. Chevrolet is 2.75 oem pipe don't like the gaps I had to fill with weld. Would have been better with a 2.50 in and out. Thats all ok as I'm going to be running true duals from cat back.
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Reviewed in the United States on February 12, 2020 by George N.
Great product
Color: Center In / Center Out
Sounds fantastic nice strong build. Functions like any muffler of its type should perfect fit highly recommend
Reviewed in the United States on December 15, 2025 by Rooster