Free Shipping on Orders Over $75. Details

Talk to Wrangler Enthusiasts
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$4,500 Giveaway! 3 Winners Enter Now

MBRP Installer Series Cat-Back Exhaust (04-06 Jeep Wrangler TJ Unlimited)

Item J17924
Call a Wrangler Enthusiast at 1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $238.99 You Save 12% ($29.00)
Our Price

$209.99 (each)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock  

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Installer Series Cat-Back Exhaust System
      • Made from 100 Percent, Heavy Gauge Aluminized Steel
      • Factory Quality Materials
      • Creates a Rich, Mellow Exhaust Note
      • Easy to Install
      • Increases Fuel Economy
      • Boosts Horsepower and Torque
      • No Additional Hardware Required
      • Spiral Louvered Muffler
      • 3 Year Limited Warranty
      • Fits 2004 - 2006 Wrangler TJ Unlimited


      Construction. This MBRP cat-back exhaust system is made from heavy duty, 100 percent aluminized steel and offers exceptional value and high quality. Installing this system can result in an increase of up to 18 horsepower and 28 ft/lbs of torque which increase your rig's pulling power and throttle response. From the fully mandrel bent tubing, to the spiral louvered high flow muffler, and the minimal bend degree angles, this system gets the most out of your Jeep's engine. It's easy to install, thanks to the bolt-on, no drilling or welding design, and it fits perfectly right out of the box.

      Warranty. MBRP backs this system with a 3 year limited warranty.

      Application. This MBRP Installer Series Cat-Back Exhaust is designed to fit on the 2004 - 2006 Wrangler TJ Unlimited models.

      Fitment: 2004 2005 2006 Details

      MPN# S5520AL

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 100+ customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • January 09, 2020

        5 2003 Wrangler - JohnR

        MBRP Cat-Back Exhaust

        Exhaust installed and fits as well as the original factory exhaust It sounds great!!!!!!!

        Helpful (1)
      • December 14, 2019

        5 2000 Wrangler - BrettJ Installation Time: Less than 1 Hour

        Great sound and fit

        Everything bolts straight up to factory cat easy install just have to wiggle a bit and if you have a lift you need to stretch the rubber hangers a bit to get them in but they still work louder tone than factory

        Helpful (1)
      • December 10, 2019

        4 2005 Wrangler Unlimited - JasonH Installation Time: Afternoon

        Install easy, more interior volume than expected

        I installed this in about 3 hours including some work to cut the old exhaust off. The rear most hanger attaches in the inside of the frame rail and on my LJ it was rubbing the plastic of the gas tank. This may be due to my tummy tuck. I reused the factory hanger location by cutting the hanger off the old muffler and reusing it. Overall the sound outside the Jeep is pretty good, deeper and louder than stock. A little louder than I was expecting. I'm finding however that the extra noise in the cabin is louder than I wanted on a daily driver. The quality and fit of the product were very good and the price was right. If not for the additional interior noise I would be completely satisfied.

        Helpful (1)
      • November 14, 2019

        5 2003 Wrangler - DrSwagPHD Installation Time: Full Day

        Great sound and fit

        This MBRP exhaust mounted right into my 03 TJ in all of about 15 minutes after getting all the stock components off. The fit, finish, and sound are all great given the low price tag. The exhaust note is just a little louder and deeper than stock. 10/10 recommend Luckily I was already diving into some other modifications, because getting the stock exhaust off was not anywhere near as easy as it was depicted in the install video. The stock muffler was rusted on so I had to drop the skidplate, which involved grinding off a bolt due to a stripped nutsert. Then I had to cut the bolts holding the muffler on because they were so rusted together. So if your Jeep has a decent amount of rust, don't expect a quick install.

        Helpful (1)
      • November 12, 2019

        5 2005 Rubicon - Davidl12293 Installation Time: Less than 1 Hour

        Will not work on Long arm kit PER MBRP

        MBRP said only works with stock arms OR i guess short arm kits... I installed it and put on the ground and it hits the long arm with just jeep sitting on wheels.. NICE system but will not work with LONG ARM

        Helpful (1)
      • November 07, 2019

        5 2005 Rubicon - Heliboy Installation Time: Less than 1 Hour

        Love it

        Went on with not problems. Alignment was easy, even with 4" lift. Sounds great - not too loud, nor droney in the cab.

        Helpful (1)
      • August 24, 2019

        5 1998 Wrangler - ReaganA Installation Time: Afternoon

        Love it.

        Really awesome exhaust for the price! Would recommend it for sure!

        Helpful (2)
      • August 03, 2019

        5 2003 Wrangler - SuaSponte Installation Time: Afternoon

        Sounds Great

        Great sounding exhaust. Makes to 4.0 sound tough! Installation was a little tricky. Depending on rust, you may have to drop the skid plate to make this happen, and that is a huge pain - watch some videos for proper technique. Once installed - very pleased.

        Helpful (3)
      • May 14, 2019

        4 2004 Wrangler - Jeeptj13 Installation Time: Afternoon


        Very loud exhaust easy installation with the right tools. Skid plate can be hard to take off. But all over very pleased with looks and performance.

        Helpful (1)
      • May 12, 2019

        4 1999 Wrangler - JENYZJP

        Works and sounds great

        Easy installation and makes the Jeep sound awesome.

        Helpful (1)

      Questions & Answers (28 answers)

      5 Top Rated Questions

      will this fit my unlimited?

      • The MBRP Black Series Cat-Back Exhaust will not properly fit the TJ Unlimited model.

      Helpful (6)

      How much horse power will this exhaust add?

      • Upgrading the cat back exhaust can see a 5-10 increase in power. 

      Helpful (4)


      • Hello, The diameter of the pipe for this system is 2.5"

      Helpful (4)

      in my search this does say that this system will fit the tj unlimited 2004 model. though in the Q A section is says it will not fit properly. Was there a change done over the years?

      • This cat back exhaust is only designed to work with the standard cab size 00-06 Wranglers.

      Helpful (2)

      2005TJ with 4 inch long arm kit will this be a problem ?

      10 More Questions
      What is the warranty on this product? 1 answer
      Even though it says "Unlimited" under the Applcations, what is the part number for the Unlimited? Does this mount right to the header, thus requiring ? Do I then need a right and left pipes? Or am I totally of the mark here? 1 answer
      Will this fit a 98 2.5 4l ? 0 answer
      Will this fit California 2002 jeep wrangler the 4.0 with 3 cats this looks like it connects with 2 bolt to the original pipe mine has 3 bolts and and is flat not coned 1 answer
      Will this replace the entire system up to the headers? 1 answer
      Will this fit my 1997 Sahara? 1 answer
      Will this fit my Wrangler with a RE long arm lift? 1 answer
      Is the black finish durable/ 1 answer
      Will this fit the lj 1 answer
      Will this fit a 2004 wrangler TJ X model? 1 answer

      Tech Specs

      Will It Fit My Wrangler

      • TJ Rubicon Unlimited 2 Door - 05, 06
      • TJ Wrangler Unlimited 2 Door - 04, 05, 06

          Related Wrangler Categories