M-AUTO Exhaust Manifold Catalytic Converter Jeep Wrangler
$249.88 price checked August 2026
If you own a 2007-2009 Jeep Wrangler 3.8L with federal emissions, this is the correct replacement.
The Jeep Wrangler Exhaust Manifold in Short
The M-AUTO Jeep Wrangler 3.8L Exhaust Manifold Catalytic Converter is for owners of 2007-2009 models needing an EPA OBD-II approved replacement that matches OE Part Number 52059930AH.
Maintaining legal street legality and proper exhaust flow requires a converter that meets EPA OBD-II standards and matches the original equipment geometry. A correct fit ensures the manifold bolts to the head without preventing the reinstallation of the heat shield.
The M-AUTO Jeep Wrangler 3.8L Exhaust Manifold Catalytic Converter achieves this through its stainless steel construction and specific compatibility with 2007-2009 Jeep Wrangler 3.8L engines. It weighs 38.6 pounds and is priced around $249.88.
Our comparison involved evaluating the exhaust manifold converter options we compared for this category. This review is for buyers who require a component that satisfies federal emissions requirements but is not intended for use in California, New York, Colorado, or Maine.
You can also find our detailed review of the Hyundai Santa Fe Sport Manifold Catalytic Converter for more specifics.
How ExtremeSpec Auto picked: we started from the 59 most-reviewed exhaust manifold converter listings in our retail dataset, removed duplicates, accessories and off-category products, and 46 qualified. This product is one of 10 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the Jeep Wrangler Exhaust Manifold
Best for: you need a replacement catalytic converter for a 2007-2009 Jeep Wrangler 3.8L that maintains an OEM-style fitment.
The M-AUTO Exhaust Manifold Catalytic Converter is a practical choice at $249.88.
- Pro: The stainless steel construction and computerized mandrel-bends provide a durable alternative to standard cordierite.
- Pro: It is EPA OBD-II approved, ensuring the unit meets federal emissions standards.
- Pro: The unit matches OE Part Number 52059930AH for precise manifold geometry.
- Con: This unit is restricted to federal models and is not legal for use in California, New York, Colorado, or Maine.
- Con: The 3.5 rating from 17 buyers suggests potential inconsistencies in fitment or performance compared to OEM cast iron manifolds.
Don’t buy this if: your vehicle is a California, New York, Colorado, or Maine emissions model, as this unit is legally restricted for those regions.
Price assessment: At $249.88, this is a fair price for a stainless steel, mandrel-bent replacement that matches specific OE part numbers.
ExtremeSpec Auto score: 5.7/10 (data-driven – see “How we picked” above)
Drivers seeking a different vehicle option can see our full breakdown of the Civic Exhaust Manifold.
Key Specifications
| Brand | M-AUTO |
| Model Number | A21-M-CC-013 |
| OEM Part Number | 52059930AH |
| Material | Stainless steel |
| Compatibility | 2007-2009 JEEP WRANGLER 3.8L |
| Certification | EPA OBD-II approved |
| Weight | 38.6 pounds |
| Construction | Computerized mandrel-bends |
The M-AUTO A21-M-CC-013 matches OEM Part Number 52059930AH to ensure the manifold geometry aligns with the specific engine block casting.
Where this sits in the buyer data: Among the 31 products screened for this category, this one’s 3.5 rating places it #23, on 17 ratings – above the 6-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 12 of them.
Before You Buy: Jeep Wrangler Exhaust Manifold Checklist
The first thing to check is your vehicle’s specific emissions model, as this unit is restricted to federal models and is not legal for use in California, New York, Colorado, or Maine.
- ☐ Verify your engine block casting matches OE Part Number 52059930AH
- ☐ Confirm your vehicle is a 2007-2009 JEEP WRANGLER 3.8L
- ☐ Check that your exhaust manifold geometry aligns with the 38.6 pounds of stainless steel weight
- ☐ Budget for professional installation to ensure proper fitment and heat shield clearance
- ☐ Confirm the included components include the necessary gaskets for a plug-and-play fit
You should not buy this product if your vehicle is a state-specific emissions model or if you require a non-OEM style replacement.
What the Numbers Mean in Use
Mandrel-Bend Construction
The Jeep Wrangler Exhaust Manifold features computerized mandrel-bends to maintain a consistent internal diameter throughout the tubing. This construction prevents the narrowing of the exhaust path, allowing for smoother gas flow compared to standard crush-bent alternatives.
For your vehicle, this design supports a more efficient exhaust flow than the stock manifold. While the stock manifold provides the baseline for thermal mass, these mandrel-bends ensure the exhaust gases move with less resistance to reach the converter and exit the system.
Stainless Steel Durability
Stainless steel construction provides the Jeep Wrangler Exhaust Manifold with high resistance to the extreme temperatures and corrosive gases found in the exhaust stream. This material choice ensures the manifold maintains its structural integrity over long periods of operation.
You can rely on this material to resist the heavy oxidation and heat-related degradation that can plague lower-grade steel components. Because it is an OEM style replacement, the stainless steel helps maintain the durability of the exhaust system while meeting the 38.6-pound weight requirement.
EPA OBD-II Compliance
EPA OBD-II compliance ensures the Jeep Wrangler Exhaust Manifold meets federal emissions standards for 2007-2009 models. This certification confirms that the converter’s internal chemistry is designed to process pollutants effectively while remaining compatible with your vehicle’s onboard diagnostics.
You must confirm your vehicle is a federal emissions model before ordering, as this unit is not legal for use in California, New York, Colorado, or Maine. Because it is an EPA OBD-II approved part, it allows you to maintain your vehicle’s emissions status without triggering a check engine light.
How the Jeep Wrangler Exhaust Manifold Compares to Alternatives
Comparison to Similar Products
The Jeep Wrangler Exhaust Manifold offers a significant price advantage over the Pacesetter 750032, costing $25.08 less while maintaining EPA OBD-II approval.
- The Jeep Wrangler Exhaust Manifold costs $7.73 less than the APDTY 112869.
- The 674-318 674-319 Front and Rear Manifold Catalytic Converters have a 5.0 rating, while the Jeep Wrangler Exhaust Manifold has a 3.5 rating.
- The AutoShack Exhaust Manifold Catalytic Converter Passenger Side is $10.89 cheaper than the Jeep Wrangler Exhaust Manifold.
- The 674-292 52022459AA Manifold Catalytic Converter costs $44.88 less than the Jeep Wrangler Exhaust Manifold.
If you require a higher-rated component for long-term reliability, the 674-318 674-319 Front and Rear Manifold Catalytic Converters are a better choice than the Jeep Wrangler Exhaust Manifold.
Why is the rating only 3.5 stars and what are the common complaints?
The 3.5 rating for the Jeep Wrangler Exhaust Manifold suggests potential issues with durability or fitment. Because the data does not specify the nature of these complaints, you should confirm the OE Part Number 52059930AH matches your specific engine casting before ordering to ensure the manifold geometry aligns correctly.
If you are shopping for a different sedan, compare the best exhaust manifold catalytic converter for toyota camry options.
Understanding physical dimensions is key, so learn how to choose your weight for exhaust manifold converters correctly.
What Buyers Still Want to Know About the Jeep Wrangler Exhaust Manifold
Will the M-AUTO Exhaust Manifold Catalytic Converter Jeep Wrangler cause a Check Engine Light or fail an inspection?
Yes, the Jeep Wrangler Exhaust Manifold is EPA OBD-II approved to help maintain emissions compliance. Because it is an OEM style replacement, it is designed to function like the original component to prevent triggering a Check Engine Light.
Is the stainless steel on the M-AUTO Exhaust Manifold Catalytic Converter Jeep Wrangler thick enough to handle high heat?
The Jeep Wrangler Exhaust Manifold uses stainless steel and computerized mandrel-bends to manage thermal stress. While the specific thickness is not listed in the data, you should confirm the gauge meets your local durability requirements before installation.
Does the M-AUTO Exhaust Manifold Catalytic Converter Jeep Wrangler fit my 2007-2009 Jeep Wrangler?
Yes, this converter manifold assembly is specifically compatible with 2007-2009 JEEP WRANGLER 3.8L engines. It matches the OE Part Number 52059930AH to ensure the geometry aligns with your engine block casting.
Is the M-AUTO Exhaust Manifold Catalytic Converter Jeep Wrangler legal for use in California?
No, this specific unit is restricted and not legal for sale or use in California, New York, Colorado, or Maine emissions models. You must verify your vehicle’s specific state requirements before purchasing to ensure legal street use.
To help you decide on a specific design, see the different types of exhaust manifold converters explained.
Is the Jeep Wrangler Exhaust Manifold Right for You?
The Jeep Wrangler Exhaust Manifold suits 5 kinds of buyer and is the wrong choice for 4 jobs, listed below with the reason for each.
Who the Jeep Wrangler Exhaust Manifold is for, and what it does well
Who the Jeep Wrangler Exhaust Manifold suits
- Off-road Jeep owners — the stainless steel construction provides durability for rugged trail driving
- Daily commuters with 2007-2009 Wranglers — the OEM style replacement ensures a factory-standard fit and feel
- Automotive mechanics — the computerized mandrel-bends ensure precise flow and easy installation
- Fleet maintenance managers — the EPA OBD-II certification ensures the vehicle remains emissions compliant
- Jeep owners in non-restricted states — the federal emissions model compatibility fits their specific vehicle configuration
What the Jeep Wrangler Exhaust Manifold handles well
- Restoring a stock 3.8L Wrangler — the OEM style replacement design maintains original factory specifications
- Passing state emissions inspections — the EPA OBD-II approved certification ensures compliance
- Replacing a corroded manifold — the stainless steel material offers superior longevity over base metals
- Maintaining exhaust flow efficiency — the computerized mandrel-bends prevent flow restriction
- Standardizing vehicle maintenance — the OE Part Number 52059930AH ensures exact fitment
What the Jeep Wrangler Exhaust Manifold is the wrong choice for
- California-based Jeep owners — the restriction on California emissions models makes it illegal for use there
- New York, Colorado, or Maine residents — the specific state restrictions rule out use in these regions
- High-performance racing builds — the OEM style replacement design is intended for standard operation rather than extreme racing
- Non-federal emissions models — the restriction to federal models means it will not fit specific regional engine variants
What to budget alongside the Jeep Wrangler Exhaust Manifold, and what to skip
Worth buying at the same time
- Exhaust bolts — needed to secure the 38.6 pound manifold to the engine block
- Gasket kit — required to create a seal between the manifold and the cylinder head
- Anti-seize lubricant — necessary for installing bolts on a high-heat stainless steel component
- Torque wrench — required to ensure the heavy 38.6 pound unit is fastened to correct specifications
- Shop jack — needed to support the vehicle during the heavy manifold replacement process
What you can skip
- Aftermarket performance headers — the OEM style replacement and mandrel-bend design provide the necessary flow without needing a different style
- Secondary catalytic converters — the product is an all-in-one exhaust manifold converter
- Custom fabrication tools — the computerized mandrel-bends mean no custom bending is required during installation
For those looking at specific brands, view our full review of the Graywerks 101122 to see its performance.
Where to Buy the Jeep Wrangler Exhaust Manifold
These retailers sell Exhaust Manifold Converter generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- RockAuto (online only) — extensive catalog breadth and competitive pricing
- Summit Racing Equipment (online only) — specialist performance and aftermarket options
- Amazon (online only) — wide variety of third-party brands
- eBay (online only) — finding specific OE replacements and used parts
- AutoZone (online and physical stores) — local availability and in-store returns
- O’Reilly Auto Parts (online and physical stores) — local availability and in-store returns
- Advance Auto Parts (online and physical stores) — local availability and in-store returns
Final Verdict on the Jeep Wrangler Exhaust Manifold
If you own a 2007-2009 Jeep Wrangler 3.8L and require an EPA OBD-II approved replacement that matches OE part number 52059930AH, the M-AUTO Exhaust Manifold Catalytic Converter is the correct choice at the $249.88 price point.
The 3.5 rating from 17 buyers confirms this unit serves as a functional OEM style replacement for federal emissions models, though it is not legal for use in California, New York, Colorado, or Maine.
Skip it if: you live in a state with strict emissions requirements like California or Maine, or if your vehicle is not a federal emissions model.
The rest of our Exhaust Manifold Converter guides
- Best Exhaust Manifold Catalytic Converters for Hyundai Santa Fe Sport
- Exhaust Manifold Catalytic Converters for Toyota Camry Compared
- Choosing the Best Exhaust Manifold Catalytic Converter for Nissan Altima
- The Exhaust Manifold Catalytic Converters That Work Best for Honda Civic
- Which Exhaust Manifold Catalytic Converter is Best for a Jeep Wrangler?