MagnaFlow Performance Exhaust Muffler 12579: 3"/3" Inlet/Outlet, 5x11x22" Oval, Stainless Steel, Satin Finish
Condition: New
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Availability:
Only 5 left in stock, order soon!
Arrives
Tuesday, Nov 18
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Size: 3 in. Inlet/Outlet
Features
- SIGNATURE MAGNAFLOW SOUND - The 5" x 11" Oval body of muffler 12579 is 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 5" x 11" 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 - 12579s 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
Magnaflow Performance Exhaust 12579
Brand: MagnaFlow Exhaust Products
Vehicle Service Type: Car, Truck, Van
Configuration: Center/Center
Shape: Oval
Inlet Connection Size: 3 Inches
Brand: MagnaFlow Exhaust Products
Vehicle Service Type: Car, Truck, Van
Configuration: Center/Center
Shape: Oval
Inlet Connection Size: 3 Inches
Outlet Connection Size: 3 Inches
UPC: 841380001153
Manufacturer: MagnaFlow Exhaust Products
Global Trade Identification Number: 53
OEM Part Number: 12579
Automotive Fit Type: Vehicle Specific Fit
Model: Painted
Item Weight: 21.6 pounds
Item model number: 12579
Is Discontinued By Manufacturer: No
Exterior: Painted
Manufacturer Part Number: 12579
Date First Available: February 1, 2006
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 18
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
Size: 3 in. Inlet/Outlet
Worked great on a 2022 Ram TRX that is a daily so I wanted it quieter. (It has cut outs so loud is not a problem) they are HUGE! Was not expecting this. Would not don’t on and Car I can think of. 1500-2500 gas trucks only. Great product and build quality. If I did it again I would choose something different based on price alone. They are expensive and other can do the same for cheaper. No HP gain or loss running 2 3” mufflers after the factory x-pipe. The truck did gain 45lbs from these also. So be sure you have room and know how heavy they are.
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Reviewed in the United States on October 15, 2023 by Victoria Matzinger
Size: 3 in. Inlet/Outlet
Thanks
Reviewed in the United States on November 20, 2024 by Carolyn Thacker
Size: 3 in. Inlet/Outlet
Yes this muffler is louder than stock exhaust. Yes it drones, especially from 67-74 mph. Don't believe when people that say it's "barely louder than stock" on website reviews, YouTube, social media, or retailer videos. Trust me, it's loud enough to notice and yes the buzzing drone sound is present at highway speed. HOWEVER, I would definitely say the muffler is not too loud overall. And I would say the drone is "bearable" going down the highway. Just be prepared to deal with it. I put this on a 24 f150 5.0 for reference.
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Reviewed in the United States on January 9, 2025 by amazon shopper 77
Size: 3 in. Inlet/Outlet
It is definitely louder than stock with low rumble at idle and during acceleration but without drone. I installed it on a F150 2019 5.0 going from 100 lbs. to 40 lbs. and improved the MPG. Now you can here the V8. It is half the size of factory muffler and definitely better quality on surface.
Reviewed in the United States on March 9, 2024 by Harold
Size: 3 in. Inlet/Outlet
Just got the package New Year's Eve. Had Ace Muffler Shop in National City. San Diego weld it up. Great Job guys,same day install. They said it should take 30 to 45 days of normal driving for the core packing to ware in and get resinie.. I got the full length 12579 Y core when i ordered it i thought i was getting straight core. 22" it will still be quite in my chevy cab to use Bluetooth hands free stereo... If you want to go loud get one smaller. If they have to add pipe to compensate for smaller muffler you will pay more for fabrication welding and hangers anywhere you go. Im not building a hot rod so this is perfect for my needs.
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Reviewed in the United States on January 1, 2019 by Curtis
Size: 3 in. Inlet/Outlet
Made my straight piped 2011 ram 5.7 hemi ram factory quiet but with a little better flow. I'm really pleased with it and glad it won't wake up my family and neighbors when going to work.
Reviewed in the United States on July 16, 2023 by W. Burke
Size: 3 in. Inlet/Outlet
Quality muffler, looks great and has a nice mellow tone. Perfect for someone who wants some noise but doesn’t want to be screaming everywhere they go. I bought this to replace an MBRP muffler from a 3rd gen Tacoma cat back system. The MBRP was too loud and droned too much for my liking, this muffler toned things down but still makes some noise. If anyone is making this same switch, I had to cut about 3 more inches off of the forward pipe before I could clamp this one in place.
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Reviewed in the United States on April 8, 2021 by ms
Size: 3 in. Inlet/Outlet
Very mild sound. I put this on my 1998 Ford Expedition 4.6L. I was more interested in a better flowing muffler and didn't want anything loud. I do have a bit of interior drone when accelerating, but it's not that bad. I would buy it again.
Reviewed in the United States on July 2, 2014 by PaulH