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2002 JEEP GRAND CHEROKEE WJ  - Dynomax Cat-Back Exhaust System - 19374 - 19374

Dynomax Cat-Back Exhaust System - 19374

Dynomax Exhaust | Part Number: DYN19374


  • Tubing Size: 2.5 Inches
  • Fitment: Direct Fit
  • In_Stock: In Stock
  • In_Stock: In Stock
  • Exit Location/Type: Single Rear
  • Material: Aluminized Steel
  • System Type: Cat-Back
  • Tip Included: Tip is included


  • 4.7L V8 engine
  • 4.0L 6 cylinder engine
  • Aluminized tubing and muffler
  • Stainless steel tip
  • 2.5 inch system
  • 3 inch tip
  • Limited lifetime warranty


Technology Dominates every phase of Dynomax Exhaust System production. From State-of-the-art CAD design and engineering to advanced CAM processes, no one else in the after market industry delivers Dynomaxs level of high-performance technology.


Question & Answers

1 Answered question

how much Horsepower will this add to my stock 2004 JGCL 6 cyl 4.0

Asked by alex from Mobile, AL on

Hi Alex, This Dynomax Exhaust Cat-Back Exhaust System includes the Dynomax "ultra flow" muffler for a system that's less restrictive than OEM and provides a distinctive tone, however the manufacturer has not issued specific horsepower gains. Factors that can affect performance include the fuel octane used, elevation, plug gaps etc. It is a performance system, hope this helps and thanks for your inquiry.

Answered by Jim G Ext 4806 from Mobile, AL on


For 30 years, DynoMax Performance Exhaust has specialized in engineering quality mufflers and exhaust performance systems for 4x4s. Pure, Unadulterated, Power is the company's theme and their extensive line of stainless steel performance mufflers reflects this. We carry everything from exhaust tips to tailpipes to mufflers made by DynoMax for off-roaders looking to increase horsepower and performance on and off the trail. In 2015, DynoMax introduced the QuietCrawler System for lifted Jeep Wrangler JKs designed for off-roading and rockcrawling. The company is dedicated to developing and producing exhaust system that push the boundaries of performance, innovation and efficiency. Shop Dynomax Exhaust Now


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