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MagnaFlow High Performance Stainless Steel Mufflers

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MagnaFlow Street
MagnaFlow Street Performance
Mirror Finished Muffler
RACE 6" Round
14378- 4x9 dual-dual
14151- 5x8 RACE14
MagnaFlow StreetMagnaFlow Street PerformanceMirror Finished MufflerRACE 6" Round14378- 4x9 dual-dual14151- 5x8 RACE14
  • Stainless Steel
  • Fiber Fill
  • Stainless Mesh
  • Wide Open Design
  • Stainless Core
  • Lap Joints
  • Reversible
More Features
$80.69$471.43
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Dress up your ride with MagnaFlow's stainless steel high performance mufflers. MagnaFlow offers a wide variety of universal fit mufflers in several different sizes and styles. They feature a straight through design that reduce back pressure and increase performance. Mufflers are available for your pickup truck, suv, sport compact, and domestic muscle car. All MagnaFlow mufflers are constructed of 100% high quailty stainless steel and feature welded 1/2" overlapped joints for rugged reliability and leak free quality. The stainless steel materials provide a muffler that won't rust or corrode, preventing the muffler from burning through prematurely. MagnaFlow high performance mufflers feature a free flowing, straight through perforated steel core, stainless mesh wrap, and acoustical fiber fill to deliver a smooth deep tone. Mufflers are packed tight with this acoustical material to ensure a long life and no sound degredation over time. High Performance MagnaFlow 100% stainless steel mufflers are available in both a satin finish and full mirror polished finish. All mufflers are backed by a full lifetime warranty.
  • Stainless Steel:  Heavy guage stainless steel body, end caps, and one piece core deliver long life protection.
  • Fiber Fill:  MagnaFlow high peformance mufflers are packed with high tempurature acoustical suppression materaial for maximum resonance and sound absorbtion.
  • Stainless Mesh:  Stainless steel mesh is used on all performance mufflers to provide durability under high temperatures.  The stainless steel mesh material also provides additionals sound absorbtion with no blow out.
  • Wide Open Design:  All MagnaFlow performance mufflers are a straight through design with no baffles.  The straight through, one piece core offers unrestricted flow and dramatically reduces backpressure and heat. 
  • Stainless Core:  A large diameter, perforated stainless steel core eliminates the flow restrictions that hinder the performance of louvered styled cores. 
  • Lap Joints:  All joints on Magnaflow mufflers are overlapped 1/2" and fully welded to offer leak free quality.  All welded, overlapped joints avoid distortion and cracking.
  • Reversible:  All MagnaFlow mufflers are reversible to allow a custom fit.
MagnaFlow Performance Universal Fit Mufflers
Mirror Finished Muffler Mirror Finished Muffler
MagnaFlow Performance mufflers are availalble in a fully polished, mirror finish. This gives the muffler a show quality look while offering the very best in protection from rust and corrosion.
Muffler Cut Out Muffler Cut Out
MagnaFlow's prominence in the exhaust industry stems from extensive R&D. Magnaflow has incorporated several key design features that makes their products best in the industry.
MagnaFlow Street Series Mufflers MagnaFlow Street Series Mufflers
The MagnaFlow Street Series mufflers were designed specifically for the sport compact market. These mufflers were designed to fit well in sport compact applications while providing a deep, throaty sound. Street Series mufflers also come with tips and are fully polished to provide an exceptional look.
magnaflow, performance, universal, fit, mufflers, straight, through, design MagnaFlow RACE Mufflers
Many racing venues are now requiring vehicles to meet strict DB levels. MagnaFlow offers RACE mufflers to help users meet these stringent sound levels. RACE mufflers are designed for high performance engines and are intended for offroad, competition use.
3 Chamber Design 3 Chamber Design
The three chamber desing mufflers feature three indiviudal chambers inside the muffler. The feature a perforated core that allows for unrestricted exhaust flow.
Question: Does MagnaFlow make a muffler for a specific car?
Answer: MagnaFlow mufflers are universal and can be installed on virtually any car using basic mechanical knowledge.  Look at our Cat-Back Exhaust Systems for what muffler sizes we use on our cat-back exhaust systems for cars and trucks, so that you can get a good idea of what muffler is right for your vehicle.

Question: What muffler is right for my car?
Answer: This depends on many factors.
  • Do you need an offset muffler?
    This is where your inlet/outlet pipes are located in relation to the muffler.
  • Do you want a stainless steel or aluminized muffler?
    The main difference between the two is the outer shell of the mufflers. Stainless steel mufflers have a polished stainless steel shell and are 100% stainless construction. Stainless steel is better looking and will never rust. Nothing looks better or lasts longer than stainless steel. The aluminized mufflers have stainless internals and necks but have an aluminized outer shell. Also, the aluminized steel has only a protective coating that, if scratched off, may rust. Both mufflers have identical internal construction and materials and both offer you a lifetime warranty and will give you that Straight-through Wide Open Performance with no restrictions. No restrictions equals better flow, and better flow equals more horsepower.
  • Sound of the mufflers?
    The bigger the muffler, the quieter the exhaust.
Question: What sound difference will I get with a smaller muffler as opposed to a larger muffler?
Answer: A smaller muffler is going to give you a much louder sound than you would normally get with a larger muffler. The larger or longer the muffler, the less sound you will get. The smaller or shorter the muffler, the more sound you will get.






Question: What's the difference between Stainless Steel and Aluminized Steel?
Answer: The main difference between the two is pricing and the outer shell of the mufflers. Stainless Steel cost more than Aluminized Steel. The Stainless steel mufflers have a polished stainless steel shell and are 100% stainless construction. Stainless steel is better looking and will never rust. Nothing looks better or lasts longer than stainless steel. The aluminized mufflers have stainless internals and necks but have an aluminized outer shell. Also, the aluminized steel has only a protective coating that, if scratched off, may rust. Both mufflers have identical internal construction and materials and both offer you a lifetime warranty and will give you that Straight-through Wide Open Performance with no restrictions. No restrictions equals better flow, and better flow equals more horsepower.









  • Satin Finish:  Satin Finish Mufflers are 100% stainless steel construction with a satin look and finish.  These mufflers offer high quality, stainless steel protection with an aluminized steel finish and price.
  • Mirror Finish:  Mirror Finished Mufflers are 100% stainless steel mufflers that have been fully polished to give a mirror finish.  These premium quality mufflers are ideal for those who desire a show quality look.
  • Body Length:  All measurements given are muffler body lenghts.  Inlet/Outlet tubes are each 3" long, adding a total of 6" to the overall lenght of the muffler. 
  • Mirror Finish RACE Mufflers:  The RACE mufflers are 100% fully polished stainless steel mufflers that are intended for offroad competition use only.  These mufflers are designed to meet db level requirements of racing venues, but may not be considered street legal in all areas.
  • 3 Chamber:  The 3 chamber design mufflers feature three individual chambers.  They use a perforated core and are constructed of 100% stainless steel materials.  3 chamber mufflers do not have baffles and may be slightly louder than the wide open design mufflers.
  • Street Series:  Street Series mufflers are fully polished, mirror finished muffles with already installed tips.  These show quality mufflers offer a smooth, deep tone and were designed for the sport compact market.   Street Series "RACE" mufflers feature a larger diameter internal core for increased flow and a more agressive tone.  These RACE mufflers are recommended for turbo, nitrous, and wild cam applications.

MagnaFlow High Performance Stainless Steel Mufflers Customer Reviews

Customer Rating Product
MF-12589 - MagnaFlow High Performance Muffler
Posted By: Trey H. (Joppa, AL) on 09/2008
great job. shipping was good. tracking number provided, no issues at all. thanks realtruck.
MF-12616 - MagnaFlow High Performance Muffler
Posted By: Pa C. (Merced, CA) on 09/2008
this is awsome, i got what i need in no time..with trust im looking foward to purchasing more items here
MF-13216 - MagnaFlow High Performance Muffler
Posted By: Edwin H. (Elephant Butte, NM) on 03/2008
I couldn't of asked for better service from your company and employees. The item (magnaflow mufflers) were shipped fast and arrived packaged well. I made a mistake and your return policy was excellent. My return items arrived the same. I buy from several different companies and yours was by far the best. Thank you for this opportunity to express my satisfaction.
MF-12256 - MagnaFlow High Performance Muffler
Posted By: Hasan S. (Columbia, SC) on 03/2008
sounds nice but it is to close to stock sound.
MF-14830 - MagnaFlow High Performance Muffler
Posted By: David G. (Chestermere) on 03/2008
Very quick shipping and is an awsome muffler... looks great on my Bimmer!
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