Buy now, pay later with Learn More

Need Help?

We've got you covered!

Sales & Service Hours

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed


  • Monday to Saturday: 8am - 11pm EST
  • Sunday: 9am - 10pm EST

Magnaflow Straight Through Muffler 14376

Product Information
List Price:
Our Price:
Part #:
Polished Stainless Steel
Body Style:
Same Side Offset Inlet & Outlet
2.5" Inlet & Outlet
11" Oval Muffler | 4" x 9" Body
  • Body Length = 11"
  • Overall length = 17"
  • 4" x 9" Body


  • Magnaflow mufflers are constructed of a T-409 stainless steel body, end caps, and one piece core deliver long life protection
  • Packed with high temperature acoustical suppression material for maximum resonance and sound absorption
  • Stainless steel mesh provides durability under high temperatures, and additional sound absorption with no blow out
  • Available in polished or satin finish
  • Straight through, one piece core offers unrestricted flow and dramatically reduces backpressure and heat
  • A large diameter, perforated stainless steel core eliminates the flow restrictions
  • All joints on Magnaflow mufflers are overlapped 1/2" and fully welded to offer leak free quality, and avoid distortion and cracking
  • All Magnaflow mufflers are reversible to allow a custom fit
  • Ships same day if order is placed by 1:00 PM CST
  • Made in the USA – Oceanside, CA

Looking to boost performance while also creating a desirable sound? Magnaflow straight-through mufflers are an excellent option for the customer who demands high-performance, excellent sound quality, and unmatched durability.

Magnaflow Performance mufflers are available in a wide variety sizes and styles giving them endless application options. They feature a straight through design that reduce back pressure and increases performance. Magnaflow mufflers are available for your pickup truck, SUV, sport compact, and domestic muscle car. Magnaflow performance mufflers are available in a satin or polished finish.

Constructed of 100% high quality 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 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 degradation over time.

Magnaflow Performance mufflers are backed by a full lifetime warranty, so you can install, and forget about it. So, what are you waiting for? Get yours today!

View Available Part Numbers For This Product Line

Frequently Asked Questions

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.

Question: What muffler is right for my car?
Answer: This depends on many factors.

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.


Watch This Video


Limited Lifetime Warranty

The manufacturer warrants that all Magnaflow Performance products are free from defects. MagnaFlow mufflers are warranted against blowouts and defects in material and workmanship for as long as the original purchaser owns the vehicle on which it was originally installed. The warranty is void if the muffler is not installed properly on the vehicle for which it is designed.


MagnaFlow Performance mufflers can be installed at home by a knowledgeable DIYer. Cutting and welding will be required for installation. If you have any questions, don't hesitate to give us a call seven days a week.