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MagnaFlow Performance Exhaust Muffler 11229

  • Based on 750 reviews
Condition: New
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$130.00 Why this price?
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Sep 19
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Size: 3 in. Inlet/Outlet


Features

  • SIGNATURE MAGNAFLOW SOUND - Engineered to deliver the deep, resonating sound that MagnaFlow mufflers are famous for.
  • DYNO-PROVEN PERFORMANCE - Extensive dyno testing is used to ensure that this 4" x 9" Oval muffler increases engine power and performance by improving the flow dynamics and evacuation of exhaust gases.
  • OPTIMAL ARCHITECTURE & CONSTRUCTION - The internal architecture of this muffler features a straight-through perforated core with two-stage acoustic packing which maintains the velocity of exhaust flow while generating a smooth, deep exhaust tone. Proudly made in the USA.
  • UNIVERSAL FITMENT - Universal design enables custom muffler placement and orientation to meet the particular spacing and mechanical requirements of your vehicle. Professional installation is highly recommended.
  • LIMITED LIFETIME CONSTRUCTION WARRANTY - Performance that lasts. Enjoy worry-free ownership knowing that you're backed by MagnaFlows limited lifetime construction warranty.

Description

Optimized weight and dyno-proven performance Stainless Steel construction for maximum durability and finish Backed by a Hassle-Free Limited Lifetime Commitment to provide defect-free product Cutting and welding required for installation Fully reversible and featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhaust project. MagnaFlow's dedication to engineering and manufacturing exhaust systems makes for a superior sound and driving experience. Constructed and carefully designed for fitment and performance, you can have confidence in making the right choice for your vehicle.

Brand: MagnaFlow Exhaust Products


Material: Stainless Steel


Item dimensions L x W x H: 20.89 x 9.65 x 4.46 inches


Vehicle Service Type: Car, Truck


Item Weight: 3 pounds


Brand Name: MagnaFlow Exhaust Products


Manufacturer Part Number: 11229


UPC: 841380000507


Manufacturer: MagnaFlow Exhaust Products


Item Highlight: Deep Signature Sound, 4x9x14" Oval, Stainless Steel, 3"/3" Inlet/Outlet, Offset/Center


Global Trade Identification Number: 07


Number of Items: 1


Included Components: MagnaFlow 11229 Performance Exhaust Muffler


Item Type Name: Automotive Performance Exhaust Muffler


Model Number: 11229


Unit Count: 1 Count


Manufacturer Warranty Description: Limited Lifetime Construction Warranty


Item Dimensions: 20.89 x 9.65 x 4.46 inches


Item Weight: 3 pounds


Inlet Connection Size: 3 inches


Outlet Connection Size: 3 inches


Compatible with Vehicle Type: Car, Truck


Configuration: Offset/Center


OEM Equivalent Part Number: 11229


Automotive Fit Type: Vehicle Specific Fit


Material Type: Stainless Steel


Shape: Oval


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 19

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


  • MAGFLOW DID GREAT.
Size: 3 in. Inlet/Outlet
Great..starting my RAM 1500 V8 in the morning sounds awesome, warms up and its NOT an overbearing rumble. $180.00 was definitely worth it..FYI I kept my RAMS resonators when the muffler was changed.
Reviewed in the United States on August 9, 2026 by Brian Forde

  • Mellow mature tone.
Size: 2.25 in. Inlet/Outlet
Great fit and MATURE sound on my ACCORD EXL 2.4. Manual. ZERO DRONE. Zero pops. Not a kids low rent muffler.
Reviewed in the United States on July 29, 2026 by mark b.

  • Stainless exhaust
Size: 2.5 in. Inlet/Outlet
Good price , nice mellow sound and no drone
Reviewed in the United States on May 15, 2026 by Jeff

  • Great sound
Size: 2.5 in. Inlet/Outlet
Super happy i chose this one iwanted something loud enough but not obnoxious raspy ricer, has deep tone at cruising speed is silent or highway, it only gets loud when u put ur foot down although you can still hear it at low speed but at a lower level no drone this is on my acces cab tacoma 4.0 fits well with the stock pipe 2.25 to the mufflers 2.5 shop was able to adapt. ... show more
Reviewed in the United States on April 9, 2026 by Amazon Customer

  • Good power gains, but WAY TOO QUIET!!!
Size: 2.25 in. Inlet/Outlet
I have to give a good review because of the fantastic quality these mufflers are, but THESE THINGS ARE WAY TOO QUIET!!!! I installed a Magnaflow x pipe and deleted the cats on my '08 crown vic when i installed these mufflers and removed the stock exhaust. I read the reviews thinking they would sound nice and be a good volume, but wouldn't be ridiculous. DON'T BE FOOLED!!! They sound great, they do, but they aren't much louder than my stock exhaust, I'm not sure if its the muffler's fault but I feel like the only reason it is only a little louder is because i removed the cats. So, Im disappointed that I spent so much money on two of these and an x pipe (around 400 dollars) and it sounds no different. I even compared with a decibel reader, and these mufflers are only 3.5 decibels louder, if that. If you want a nice sound, louder than stock, but not obnoxious like cherry bombs, Id recommend Flowmaster 40s. But if you want a good gain in performance but want it quiet (maybe you have a sleeper build in mind) get these mufflers. Idk what people were saying how these are "way too loud" like they sound just like stock....... Also, I do feel like the flow has been freed up, by a lot. you can look down these mufflers and see through them, they have it flow very well, again, also thinking that they would sound loud, but they dont, but these straight through style mufflers with the x pipe have picked me up like 10-15 hp, with a good brand intake you could see some nice hidden power from your engine without attracting police. So enough of my rambling, still 4 stars because they are good, but I hate that they are so quiet, quite a disappointment.... :( ... show more
Reviewed in the United States on October 28, 2016 by JJ Rudawski

  • Great muffler
Size: 2.5 in. Inlet/Outlet
Bought this with and paired it with an 18 inch vibrant resonato. I had an exhaust shop install them on my 2.5l passat. It's a custom cat back with the resonator up front, the muffler in the back and 2.5 inch pipe. The combination provides a nice growl when accelerating and can get kind of loud, but not loud when idling and no expressway drone. I find myself listening to the radio less and enjoying the exhaust sound. ... show more
Reviewed in the United States on April 27, 2026 by Daniel Roberts

  • Sonido grave y deportivo
Size: 2.25 in. Inlet/Outlet
El material se ve súper bien, ya lo tengo instalado y si cumple muy buen con el "Deep Signature". El sonido es súper grave y no tiene nada de "drone"
Reviewed in the United States on September 2, 2026 by Arturo Peñate

  • Great Purchase!
Size: 2.5 in. Inlet/Outlet
Sounds wonderful on my 05 Tacoma. Make sure you get the right one but sound amazing.
Reviewed in the United States on February 3, 2026 by V.Z.

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