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Dynomax 39475 Stainless Steel Exhaust System

  • Based on 40 reviews
Condition: New
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$262.78 Why this price?

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Jan 26
Order within 20 hours and 23 minutes
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Features

  • Stainless steel construction for lifelong protection
  • 100% welded design for maximum durability
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
  • Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.

Description

DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax Ultra Flo Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee. All Dynomax Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax.


Manufacturer: ‎Dynomax


Brand: ‎Dynomax


Item Weight: ‎33 pounds


Product Dimensions: ‎52 x 14.75 x 10.5 inches


Country of Origin: ‎USA


Item model number: ‎39475


Exterior: ‎Smooth


Manufacturer Part Number: ‎39475


OEM Part Number: ‎39475


Date First Available: October 28, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jan 26

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • BadAss!!!
Purchased on 4/22/2020 and Was estimated to be delivered around May 8th for delivery. Got it 4/24/2020 and blew my mind on the fast delivery. I opened the box and the Quality of the kit is top notch. My coworker and I put my 2012 Liberty on the hoist and removed my old muffler, installed this AWESOMELY EASIEST KIT I have ever installed for a muffler system in my mechanical life. We did a complete swap in about 40 minutes. The sound is awesome, a nice little Growl, NOT Over powering on accelerating from a stop. Just enough to give out a Caveman Grunt. When cruising the Intersate not Loud at all. ... show more
Reviewed in the United States on April 25, 2020 by Daymonkey

  • Sound clip attached to my review
The media could not be loaded. I've tried Borla and Flowmaster on other vehicles but have heard great things about Dynomax so I decided to try them out on my 2012 Jeep Liberty with the 3.7L. The first time I started my Jeep after installing, I fell in love with the sound. It has a great tone without being overbearing. I was looking for just a little louder than stock, but definitely more throaty, and that is what I got with this setup. Highly recommend. Please see my attached video clip for an example of the sound ... show more
Reviewed in the United States on March 16, 2016 by David A. Gautreau

  • Good product
Good replacement-makes my Nitro sound like new and full of power again. I replaced my original that was 5 years old and burnt out at the tailpipe/resonator. Be aware that the connector for the muffler is quite different on this aftermarket from the OEM-the original is a welded clip on the connection before the muffler while this replacement is just a clamp with a double bolt and the connecting pipe has no clip. This was somewhat confusing at first because it appeared that it needed to be loosened whereas it did not come off at all. My process was simple-I cut off the existing muffler and connecting pipe with a reciprocating saw as the OEM clamps were rusted and it was a tight fit-you won't need them anyway. Then with a second pair of hands-which I highly recommend-the unit was assembled from front to back and put into place then tightened down. I spent about 90 minutes on this only because of the rusted OEM parts-otherwise it would have been a 60 minute job. ... show more
Reviewed in the United States on August 8, 2012 by Mikey Angelo

  • Perfect for 08-12 Jeep Libery KK
First off, I had this professionally installed and welded instead of using the clamps that came with it. I love this exhaust! It has a great exhaust note, not too loud but throaty performance sound! Also, my jeep feels like it gained pep and better acceleration overall (combined with a K&N filter). My mileage is also improved, as per scangauge II. Thanks Amazon and Dynomax! ... show more
Reviewed in the United States on June 5, 2014 by Blue line L.I. NY

  • DIY save a fortune
I like that it is stainless and in a well engineered kit which is perfect for a DIY job.
Reviewed in the United States on August 20, 2020 by Wayne

  • Just right
Used on my Jeep Liberty, fit correct and sounds nice. Not too loud, just right.
Reviewed in the United States on August 15, 2019 by Chuck

  • Good sound 😁
Fit perfectly, great deep tone sound,
Reviewed in the United States on July 23, 2019 by Brian Knickerbocker

  • Sounds great, got my power back
Sounds great, got my power back, installed quickly in 30 min. Chrome tip looks great. Everything aligned up precisely!
Reviewed in the United States on June 23, 2018 by Eric

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