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19421 Ultra Flo Welded Series - 2005-2010 Jeep Cat-Back Exhaust System - Made of Stainless Steel

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Manufacturer #19421
Vehicle Info Required to Guarantee FitAdd Vehicle


Made of Stainless Steel
Ultra Flo Welded Series
System Type:
Quantity Sold:
Sold individually
Lifetime Dynomax limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location:
Exit: After Rear Tire (Passenger Side)
Main Piping Diameter:
2.5 in. Main Pipe
Product Fit:
Direct Fit
Recommended Use:
Performance Replacement

Vehicle Fitment Information

Vehicle Name
Fitment Information
2005 Jeep Grand Cherokee
All Submodels
All Engines
2006 Jeep Grand Cherokee
65th Anniversary Edition
6 Cyl 3.7L
2006 Jeep Grand Cherokee
65th Anniversary Edition
8 Cyl 4.7L
2006-2009 Jeep Grand Cherokee
8 Cyl 4.7L
2006-2009 Jeep Grand Cherokee
8 Cyl 4.7L
Page 1 of 3 | Showing 1 - 5 of 15 results

Product Information


Dynomax’s Ultra Flo cat-back exhaust system will not only boost your image and confidence with its quality construction, but is dyno-proven to dramatically increase your vehicle’s performance with style and a deep, cool tone. Dynomax is a world leader in the performance exhaust space, manufacturing products held to the highest engineering standards and backed by extensive research and development.

  • Backed by a limited lifetime warranty
  • Proven via dyno to flow 2000 SCFM and support 1,900 horsepower
  • Interior fiberglass matting absorbs annoying resonance while maintaining aggressive tone
  • Improves torque and horsepower as well as fuel mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Includes all necessary hardware
  • Direct fit
  • Legal in all 50 states
  • Straight design means exhaust flows freely and backpressure is gone
  • Uses stock hanger/mounting locations
Need help?Call our product expert1-866-529-0412
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Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

How much of a horsepower boost does it provide ?KennyDec 03, 2023
Best Answer:Hi Kenneth, thank you for reaching out. The manufacturer doesn't list the horsepower gain for this product since it may vary depending on the vehicle information and tuning. However, this product can support up to 2,000 horsepower. You can use this link to view the installation guide for this product: <a href="https://www.dynomax.com/downloads/instruction_pdf/19421%20InstRev0606.pdf" target="_blank">https://www.dynomax.com/downloads/instruction_pdf/19421%20InstRev0606.pdf</a> This item is running out fast, and we have just a few remaining. Take advantage of the limited stocks for this item. Click this link to order this product: <a href="https://www.carparts.com/exhaust-system/dynomax/d2219421?can=CPAP3648_CSQA_20231203" target="_blank">https://www.carparts.com/exhaust-system/dynomax/d2219421?can=CPAP3648_CSQA_20231203</a> I hope this helps. Happy shopping.
Aldrin P.STAFFDec 03, 2023

Customer Reviews

Ultra Flo Welded Series - 2005-2010 Jeep Cat-Back Exhaust System - Made Of Stainless Steel
Nice kit, *ALMOST* complete. Easy install. Nice sound...not so much a "rumble", more like a "BWAAH" sound
This cat-back exhaust was the easiest cat-back I've ever installed and I've done a bunch on Jeeps and passenger cars. It took me less than 2 hours from start to finish and that included some lunch! The sound is pretty nice..a bit dronie at around 2k RPM. But otherwise, it sounds good. At idle, it sounds almost stock. I would have liked a bit more of a "RUMBLE" sound like some other kits. This one has a kind of "BWAAAAH" sound when you step into the throttle. This kit comes with *ALMOST* everything you need....*ALMOST*. What's missing is the 15mm nuts that bolt the flange to the catalytic converter. You may be able to reuse the originals, but I wouldn't risk it. Luckily, your local big-box hardware store has these in a 4-pack. So you'll have extras because that's what you need, right?
Ed K.
Purchased on Jun 27, 2019
Very fast shipping and a perfect fit
Bruce C.
Purchased on Mar 06, 2021