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Flowmaster

Flowmaster Super 10 Series Chambered Muffler – 2.50” Center In / 2.50” Center Out – Race-Inspired Sound – 409 Stainless Steel – Ideal for Muscle Cars, LS Swaps, Drag Cars & Off-Road Builds (842515)

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Availability: In Stock.
Fulfilled by BoostProjects
Arrives Saturday, Nov 8
Order within 14 hours and 14 minutes
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Style: Single Chamber


Features

  • 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

Flowmaster's Super 10 Series 409S Stainless Steel - Single Chamber mufflers are intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off highway use and not for street driven vehicles. These mufflers utilize the same patented Delta Flow technology that is found in Flowmaster's other Super Series mufflers to deliver maximum performance. Super 10 Series mufflers are constructed of 16-gauge 409S Stainless Steel and fully MIG-welded for maximum durability.

Brand: Flowmaster


Item dimensions L x W x H: 28.7 x 9.9 x 4.5 inches


Configuration: Center/Center


Shape: Oval


UPC:


Brand: ‎Flowmaster


Item dimensions L x W x H: ‎28.7 x 9.9 x 4.5 inches


Configuration: ‎Center/Center


Shape: ‎Oval


UPC: ‎700042023912


Manufacturer: ‎Flowmaster


Global Trade Identification Number: ‎12


OEM Part Number: ‎842515


Model: ‎Super 10


Item Weight: ‎5.35 pounds


Product Dimensions: ‎28.7 x 9.9 x 4.5 inches


Item model number: ‎842515


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Painted


Manufacturer Part Number: ‎842515


Date First Available: March 5, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 8

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.

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Top Amazon Reviews

    • Super 10/10
Style: Offset In / Offset Out
The media could not be loaded. Super 10/10 I bought these for my mild cam 350 for my Chevelle , the video is a mock up but the bolted right up nicely. Came packaged well and shipped fast. Great quality and I love the sound. They look amazing with the finish and had a great price
Reviewed in the United States on August 31, 2025 by Ricardo Coleman
    • Sounds great on a Mercedes E550 Coupe!
Style: Single Chamber
The media could not be loaded. I decided to upgrade the exhaust on my Mercedes E550 Twin Turbo V8 Coupe and used an X-Pipe and went with these Flowmaster Super 10's. I was quite surprised with the sound, as it's actually not too loud and has a nice mellow rumble. Easy to install and highly recommended! There is a slight drone presence but nothing so loud that it'll give a headache. Just more of a comfortable hum at highway speeds. The car is sound dampened enough that it doesn't bother me on road trips. As for the fit it was perfect. I had a hard time finding a set of mufflers that would fit in the unique placement for this car that wasn't $2000 or more for a set of mufflers. The Super 10's are very compact and was a perfect fit. ... show more
Reviewed in the United States on May 22, 2025 by Michael Strozier
    • Good sound!
Style: Dual In / Dual Out
The media could not be loaded. Installed in a 2020 Dodge Durango R/T that it was straight pipe (so super loud). It's installed in the middle and just some tips at the back. The sound still loud but now sounds the way it supposed to sound. Its build with good quality for the price compared with a single outlet muffler. ... show more
Reviewed in the United States on June 15, 2025 by David Salinas
    • Easy upgrade. Not loud at all on gx470.
Style: Offset In / Center Out
Sounds good. Light weight. Easy install for a welder or exhaust shop. Saves around 80lbs over my stock lexus gx470s huge muffler I replaced it with. Its still relatively quiet but sounds good when you get on it. No drone at any speeds for me. It also feels like I gained some power. Easy upgrades.
Reviewed in the United States on May 2, 2025 by Tom
    • Awesome...😎
Style: Offset In / Offset Out
I have a 2021 Chrysler 300 Touring L awd 3.6L an might I say.....Sounds amazing,however its alil loud gettin upto speed, but after it gets goin.... it is awesome an it sounds great at Idle. With it bein a 3.6l V6:.. it sounds like a V8 at idle. You can't get a V6 to sound like a V8, but its pretty damn near close. Overall, it does Sound Great considerin. Very happy with it overall an it adds more rumble. Didnt like bein too Quiet, but not overall too loud in general... ... show more
Reviewed in the United States on August 10, 2024 by William A.
    • Loud
Style: Dual In / Dual Out
Perfectly Loud. Not crazy loud but it will wake up neighbors when you rev it.
Reviewed in the United States on January 23, 2025 by John
    • Great Sound, legally a muffler by all accounts, paint peels
Style: Offset In / Center Out
This muffler has overall held up pretty well, but the black coating is peeling off. Now... I'm uncertain if this is entirely the product's fault since it may have been the exhaust shop's fault (crappy weld job). It is under the car and my 2003 Mazda Protege5 is lowered so it isn't visible, but the paint is still peeling. The sound is great! single-chamber seems to provide a deeper/fuller rumble over a straight-pipe and is louder than stock. Overall volume is perfect for a neighborhood situation. I paired it with a Vibrant bottle-resonator and it is just as loud as stock-resonator-no-muffler setup. I don't care too much about the paint so this is an excellent purchase for those of you who don't want to argue with a cop that resonator IS a muffler and so a muffler-delete is totally legal. If you want a louder car but are skittish about legalities, this muffler is a great option to increase aggressive sound and still be completely legal in most states. I might go back and order the Outlaw (still not sure why that's more expensive) but overall this is a perfect balance in sound, cost, and quality. The only small issues I have with my setup are totally unrelated to the product and fully because of the exhaust shop I took it to. ... show more
Reviewed in the United States on December 6, 2022 by Josiah
    • Sound
Style: Single Chamber
Sounds wonderful aggressive, needs coupled with resonator for best results
Reviewed in the United States on February 28, 2025 by Asb

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