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Rugged Ridge Replacement Exhaust Manifold (07-11 3.8L Jeep Wrangler JK)

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    Features, Video & Details

    • Replacement Exhaust Manifold
    • Cast Iron Construction
    • Natural Finish
    • Fits 2007-2011 Jeep Wrangler JKs with 3.8L Engines

    Review & Installation Video

    Review & Install Video

    This Rugged Ridge Replacement Exhaust Manifold is for those of you that have a 2007 to 2011 JK with the 3.8-liter engine and are looking for replacement exhaust manifold because yours is cracked or otherwise rusted out. If you're somebody who does a lot of deep water crossings, plays in a lot of mud, when you have a very hot exhaust manifold making contact those very cold liquids, you can often times get a crack. And it's not often easy to fix an exhaust manifold by welding it. You'll end up with a very strong section when it's welded and you'll just end up with a new crack right next to your weld. So, replacement is often the best option. These are, of course, available from both the driver and the passenger side of your 3.8-liter and you can also get this as a pair if you need both of them. These are also available in stainless steel. So if you're looking to keep the rust at bay, you don't wanna go with a mild steel manifold like it was on your jeep from the factory. You can upgrade to the stainless but, of course, it is going to be more expensive.This manifold is going to be cast iron. It is going to be a direct replacement for your factory exhaust manifold, so you're not going to get any sort of benefits out of this like you would a header. Oftentimes, a header has a slightly larger port, it has a different design to allow greater flow, it might be something similar to a long tube header which is designed to give you some additional torque and/or horsepower. This is just going to be a straight replacement. It's not going to be any additional power or any additional benefits. However, this is going to save you some money over going to Mopar for a factory OEM replacement.The install for this header is going to be a little bit of an involved process and I am going to give it a two out of three wrenches. You're going to need pretty much every tool in your toolbox in order to get this installed. The process really starts by doing the disassembly, removing your collector off the end your exhaust manifold. You're going to have to remove all of the bolts that are holding the manifold in place and then replace it with the new manifold and a new gasket while you're at it. Now, you can run into a lot of issues when you're working with exhaust because you will have some rust on it. And often times, its bolts and the studs get brittle and also rusted, so you can end up with some broken bolts. It's definitely a good idea to spray everything with a good penetrating oil well before you get started with this install to help avoid any of that breakage.Now, getting the old exhaust manifold off and getting the new one on is really just a matter of a couple of bolts but the difficult part, the time-consuming part comes from removing everything else that you might need to remove to get to this location because it is going to be a little bit tight in there. You're gonna have to work from both the top and the bottom side of the engine. If this is not something you're comfortable with, I would definitely recommend taking your jeep to a shop and having them install this. It will probably save you some headaches.This manifold will run you right around $150 for one and about double that for the pair which you would expect. And again, this is gonna be less expensive than if you are to go Mopar and get a replacement exhaust manifold. These are also going to be less expensive than the stainless version from Rugged Ridge. But either way, they are going to get the job done. They're going to be as similar as you can possibly get to and OEM exhaust manifold. And if you're looking for a replacement, I think this is going to be a really good way to go to save you a few dollars.So, if you need to replace your exhaust manifold, I would definitely recommend taking a look at this one from Rugged Ridge that you can find right here at

    Refresh Your Vehicle's Performance. Do you suspect your Jeep may be suffering from exhaust leak? It may be time to install a Rugged Ridge replacement exhaust manifold. It's guaranteed to match your factory manifold, giving you back some lost performance back from your 3.8L engine after installation.

    Made by Off-Roading Experts. The Rugged Ridge Replacement Exhaust Manifold was developed by off-roading experts over at Omix-Ada. Based in Suwanee, Georgia, the company is one of the country's largest independent manufacturers and distributors of outdoor driving accessories for Jeeps. This allows them to maintain a level of quality that matches and exceeds OE standards.

    Thick Cast Iron Construction. This replacement exhaust manifold features thick cast iron construction. Its design allows it to resist the corrosion without constricting your exhaust system's natural flow rate.

    Application. This Rugged Ridge Replacement Exhaust Manifold is guaranteed to fit 2007-2017 Jeep Wrangler JKs with 3.8L engines.

    Fitment: 2007 2008 2009 2010 2011 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Rugged Ridge Replacement Exhaust Manifold
    • Mounting Hardware
    Installation Info
    Tech Specs
    Will it fit my Wrangler?

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    Questions & Answers (1)

    1 Top Rated Question

    do these headers work with the stock heat shield?

    • The Rugged Ridge Replacement Exhaust Manifold is designed as a replacement for the factory piece, and would work with the factory heat shield.

    Helpful (0)
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    Customer Reviews (2) Write a Review

    Overall Rating 3.5

    out of 5 stars

    Installation Time:Afternoon

    • Exhaust Note 4.5 4.5
    • Fit & Finish 4 4
    • Bang For Your Buck 4 4

    • 4/5

      Installation Time: Afternoon

      June 22, 2017

      3.8 Headers

      Great replacement for stock manifolds. I coated mine with VHT flame proof ceramic primer and paint after I cleaned em up with oven cleaner. Improved fuel mileage and downshifting on the highway.


      Year: 2008Submodel: Wrangler

      Helpful (9)

    • 3/5

      Installation Time: Afternoon

      May 21, 2017

      Beauty Manifold

      easy to install sounds great can't believe quality


      Year: 2011Submodel: Wrangler

      Helpful (8)

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