How to Relocate the Muffler on Your Jeep Wrangler JK

Updated on August 14, 2018
Greg Chan profile image

GChanMako enjoys working on, improving, and modifying his Jeeps.

Before the Job Is Started

After the Job Is Done

Give Your Jeep Wrangler JK a New and Better Muffler

If you look at the back of your Jeep Wrangler JK there is a huge unsightly muffler hanging down from the rear. You can easily mount a new muffler in a different place for a more aggressive sound and cleaner look. You will get additional horsepower and ground clearance. Ready to learn? Then read on ...

You will need a new muffler to do this relocation. Pick a muffler with left-side-in and left-side-out pipes. Buy a good quality muffler to avoid rust. And be sure to pre-measure the area underneath the vehicle to see if your muffler will fit. We chose a Magnaflow muffler for its aggressive sound.

One more thing: this job may require some welding to do it right, so be prepared, or you can use muffler clamps.

How to Relocate the Muffler to Under the Driver's-Side Seat on a Jeep Wrangler JK

Locate the area under the driver's-side seat area under the vehicle that has a long section of muffler pipe (see photo below). This is where you will be removing a section of the exhaust pipe.

Place your new muffler into that area to see if it will fit into the frame area, without hitting any metal. Make sure the muffler pipe outputs line up correctly with the Jeep's exhaust piping. They should be left side to left side outputs.

If there is adequate space to mount the new muffler, and nothing is hitting, then you have done it right. Now you are ready to to measure and cut the pipe.

Measure Thrice and Cut Twice

In this case you will want to triple check your measurements and then you will be cutting the pipe twice! Or in two areas.

When measuring you want to make sure you leave enough of the pipe on the Jeep so it will slide into the muffler piping (see photos below).

Measure where you want to cut and mark with a permanent marker. Measure again to be sure, and then check again.

Use a cutting saw and cut the pipe. Then test fit the muffler on to the pipes.

Click thumbnail to view full-size

Choose High-Quality Installation Parts

Once the muffler is fitted it should stay in place without any clamps or welding to hold it in place. If it doesn't, then you probably cut too much pipe and you may have to weld it in place.

Purchase high-quality rust-resistant muffler clamps that bolt down evenly (see the photos below). This will ensure an even clamp over the entire connection surface.

Tighten down the clamp on both sides and your new muffler is installed. But we are not quite done yet.

Click thumbnail to view full-size

Removing the Old Muffler

Now that the new muffler is installed you may think we are done. But we are not! Dont forget the reason why we are doing this in the first place: to get rid of that big clunky rusted out muffler in the back. So that is what we have to do next.

Go to the rear of your Jeep Wrangler JK and locate where the muffler attaches to the exhaust piping. Remove that bolt from the clamp.

Then locate where the muffler is attached to the frame by the rubber muffler hanger or isolator and with a large pair of channel lock pliers remove the muffler hanger. See the third photo below for placement of the channel lock pliers.

Once the hanger is removed you can safely remove the muffler assembly. This may require both hands or two people. You may have to move the muffler side-to-side to break it free from the clamp area as over time this may have rusted.

Once removed, you can discard the muffler assembly and the exhaust pipe section you cut off earlier at your local metal recycling center.

Click thumbnail to view full-size

It Is Time to Get a New Tail

Once the old muffler is removed you will have an exhaust pipe that vents out underneath the vehicle. This is a big NO NO in some states and for safety reasons should not be left this way. You do not want exhaust fumes underneath the vehicle.

Therefore, you will need to attach a new exhaust pipe that vents out past the frame of the vehicle. Here you can get as creative as you want, and vent straight back, to the side, or however you want. Any muffler shop or exhaust pipe supplier can sell you a section of piping, either bent or straight.

Simply mount the piping into the stock mounting clamp and re-tighten. Then cut off any excess you have.

Now you can leave the bare pipe as is, or you can add a new exhaust tip for a better look. If you install a tip you may have to cut off more of the exhaust pipe so it does not stick out too far. We added an exhaust tip and we have been happy ever since with the look and sound.

Best of all, we got rid of some extra weight, and got more clearance in the back.

So if you want to do a cool upgrade for your JK then you might want to consider relocating the muffler. If anything it will make your JK stand out from a lot of others on the road when they wonder where your muffler is!!!

Click thumbnail to view full-size

Comments

    0 of 8192 characters used
    Post Comment

    No comments yet.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, axleaddict.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://axleaddict.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)