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If your Nissan Murano is showing signs of reduced performance or louder exhaust noise, choosing the right exhaust manifold is an important step toward fixing the problem. The right manifold affects engine breathing, exhaust temperatures, and how well seals hold up over time, so picking an option that fits correctly and handles under-hood heat matters. This guide highlights seven shortlisted exhaust manifolds chosen for the Nissan Murano that balance fitment, durability, and thermal performance. Below we explain the criteria used to evaluate these top picks and what to look for when deciding on a replacement.
Looking for other parts? See all Nissan Murano parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Dorman 674-905 Passenger Side Exhaust Manifold Kit |  |
| Most Popular A crowd favorite that many people choose with confidence | RZOCARULE Catalytic Converter for Nissan Altima L4 2.5L (front) with Gasket Kit |  |
| Best Quality Built to a higher standard if you want something more solid | Dorman 674-331 Exhaust Manifold with Gaskets and Hardware |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Left Side Engine Exhaust Manifold Kit with Gaskets & Nuts |  |
| Most Sold A high-volume bestseller chosen again and again | FortunaFlow Front Catalytic Converter Manifold for Nissan Sentra (Direct-Fit) |  |
| Best Value for Money The sweet spot between price and what you get | AngyMeck Cast Iron Exhaust Manifold Pair (Left & Right) |  |
| Best Overall The best all-around choice for most situations | A-Premium Front Exhaust Manifold Catalytic Converter with Gasket Kit |  |
1. Dorman 674-905 Passenger Side Exhaust Manifold Kit
| Installation Type | Bolt-On |
|---|---|
| Automotive Fit Type | Universal Fit |
| Manufacturer | Dorman Products |
| Exterior | Machined |
This Dorman kit supplies a passenger-side exhaust manifold designed as a direct-fit factory-quality replacement and arrives with the gaskets and downpipe bolts needed to complete the repair. It is intended to restore sealing and exhaust flow where a cracked or warped manifold causes ticking or leaks. Typical use is a one-time repair on the affected side of the engine, installing the manifold to the cylinder head and reconnecting the downpipe with the supplied hardware. Notable features include machined exterior finish, inclusion of gaskets and downpipe fasteners, and design reverse-engineered from factory parts to match original routing. In practice the kit simplifies a repair by reducing trips for extra parts and reviewers report good fit and elimination of exhaust tick when the correct side and year are selected. Limitations: some installers found the part heavier than stock and in a few cases needed different-length head bolts or minor fitment trimming at the downpipe flange, so check bolt lengths and be prepared to swap or modify fasteners during installation.
Best for: Reliability-focused buyers who prioritize restoring a quiet, sealed exhaust system with a ready-to-install replacement and want a factory-quality repair solution.
Less Ideal for: Users seeking a universal part for many makes or those unwilling to source or modify fasteners during installation should consider other options.
- Includes required gaskets and downpipe hardware for a more complete repair
- Machined finish and factory-replacement design aim to match original fit and function
- Durable construction intended to resist warping and cracking
- Does not include manifold-to-head bolts so additional fasteners may be required
- Some users reported slight misalignment at mating surfaces requiring minor modification or different-length bolts
Verdict A practical, factory-replacement passenger-side manifold kit that streamlines repair by including gaskets and downpipe hardware but may require separate head bolts or minor fit tweaks.
2. RZOCARULE Catalytic Converter for Nissan Altima L4 2.5L (front) with Gasket Kit
| Compatibility | 2007–2013 Nissan Altima L4 2.5L (front) |
|---|---|
| Housing material | Stainless steel |
| Design | Flange-to-flange bolt-on with gasket kit |
| Compliance | EPA compliant (not for sale in some states) |
This RZOCARULE catalytic converter is a flange-to-flange, bolt-on replacement intended to restore exhaust emissions control and fit the front position on compatible 2.5L Nissan Altima engines. It is typically used as a direct replacement when a damaged or clogged converter triggers a check-engine code or fails emissions inspection. The housing is stainless steel for corrosion resistance and the unit contains a honeycomb ceramic substrate coated with catalyst material to convert harmful gases. The kit includes gaskets and installation hardware to simplify swap-out and the flange design helps with alignment during installation. Buyers should note the product is EPA compliant but is not legal for sale in certain states with stricter rules. Some users report check‑engine issues after installation on some vehicles and a variable long-term reliability record compared with higher-end OEM-style converters, so expect a budget-oriented solution rather than a lifetime fix.
Best for: Convenience-driven buyers who prioritize a ready-to-install replacement that restores emissions function quickly with included hardware and minimal fabrication.
Less Ideal for: Drivers in states with strict emissions rules or those seeking a long-term OEM-equivalent solution; specialty shops and performance tuners may prefer higher-end or vehicle-specific units.
- Flange-to-flange bolt-on design simplifies installation and alignment
- Stainless steel outer shell resists rust and high heat for longer service life
- Includes gaskets and hardware so no additional parts are required for most replacements
- Honeycomb ceramic substrate provides high-flow catalytic conversion to reduce emissions
- Not legal for sale or use in certain states with stricter emissions regulations
- Some buyers reported persistent check-engine codes or fitment-related sensor issues after installation
Verdict A budget-friendly, bolt-on front catalytic converter replacement that gets a 2.5L Nissan Altima back on the road quickly but may not match OEM durability or legality in every state.
3. Dorman 674-331 Exhaust Manifold with Gaskets and Hardware
| Brand | Dorman |
|---|---|
| Model | Dorman 674331 Exhaust Manifold |
| Manufacturer Part Number | 674-331 |
| OEM Part Number | 101554; 14002-JA10A |
This Dorman exhaust manifold replaces the factory unit on specified Nissan and Infiniti applications and ships with the gaskets and downpipe hardware needed for installation. It is typically used when the original manifold is cracked, warped, or leaking; the included hardware lets a technician or experienced DIYer complete the job in one visit. Dorman describes the part as reverse-engineered to the factory shape and tested to meet emissions and durability targets, which should make fitment straightforward and restore exhaust sealing and flow. The kit approach saves the hassle of sourcing separate gaskets and studs, and the machined exterior suggests attention to mating surfaces. Limitations to consider are mixed user reports about weld finish and occasional missing fasteners, so inspect the part on arrival and be prepared with a small hardware kit. This is a solid high-quality aftermarket option when you want a near-factory repair without buying a dealer part.
Best for: Performance-oriented owners who prioritize restoring factory exhaust flow and sealing with a complete replacement that minimizes return visits and extra parts searches.
Less Ideal for: Buyers seeking an exact dealer part or those unwilling to inspect and potentially replace minor hardware should consider alternatives.
- Includes all required gaskets and downpipe hardware for a one-order, ready-to-install repair.
- Engineered to mirror factory fit and function to simplify installation and sealing.
- Machined exterior and tested design aimed at durability and emissions compliance.
- Some units show rough internal welds and occasional missing hardware, so part inspection is recommended on receipt.
- Not specified as vehicle-specific beyond the listed fitment years so verify exact trim compatibility before installation.
Verdict A complete, factory-fit focused aftermarket manifold that gets a Nissan Murano back to proper exhaust sealing and flow while avoiding separate gasket and hardware orders.
4. A-Premium Left Side Engine Exhaust Manifold Kit with Gaskets & Nuts
| Brand | A-Premium |
|---|---|
| Material | Cast Iron |
| Fitment Type | Direct Replacement |
| Included Parts | Manifold, manifold gasket, flange gasket, 3 nuts, mounting hardware, heat shield |
This exhaust manifold kit is a straightforward, budget-focused replacement built from cast iron and supplied with a manifold gasket, flange gasket, mounting nuts, and a heat shield. It is intended to bolt directly to the cylinder head and downpipe, making it suitable for a routine repair when the original manifold has cracked or started leaking. In real-world use the cast iron construction provides durability and good heat resistance, and the included gaskets and hardware simplify installation by reducing the number of parts you must source separately. Expect typical installation challenges for V6 manifolds such as limited access to some bolts, but once installed it should eliminate exhaust ticking and restore consistent exhaust flow. The kit is sold as a left-side unit and is marketed as a direct replacement to match factory fitment, though buyers should verify exact fitment for their Murano year and engine before ordering.
Best for: Budget-conscious buyers who prioritize a low-cost, ready-to-install factory-replacement fix to stop exhaust leaks and keep an older Nissan running reliably.
Less Ideal for: Shoppers seeking a performance-upgrade manifold, a lightweight material like stainless or tubular headers, or a solution for vehicles with modified exhaust systems should look elsewhere.
- Includes manifold gasket, flange gasket, nuts, and heat shield so you get everything needed for the left-side replacement
- Cast iron construction offers strong heat resistance and a sturdy feel suited to long-term service
- Packaged as a direct replacement to match factory mounting points and simplify installation
- Tight bolt access common to V6 installations can make removal and fitment time consuming
- Only the left-side manifold is provided so the right side must be purchased separately if needed
Verdict A practical, low-cost left-side cast iron replacement manifold that includes gaskets and hardware to restore factory-style sealing without a high price.
5. FortunaFlow Front Catalytic Converter Manifold for Nissan Sentra (Direct-Fit)
| Position | Front |
|---|---|
| Model | NS092.0 |
| Exterior | Machined |
| Manufacturer | FortunaFlow |
This FortunaFlow front catalytic converter manifold is a direct-fit replacement intended to restore exhaust flow and emissions control on compatible Nissan Sentra models. It installs using the factory bolt pattern and includes gaskets and hardware for a bolt-on swap, so it is typically used during exhaust repairs or when a failed catalytic converter triggers a check-engine light. The unit is machined from stainless steel with CNC MIG welds for structural strength and claims EPA compliance, which helps resolve emissions codes and maintain driveability. Buyers will appreciate the precise flange fit that reduces the need for modification and the included mounting hardware that speeds up installation. Limitations are that it is vehicle-specific and not legal for sale in several states, and buyers must confirm exact year and engine fitment before ordering. Long-term durability will depend on installation and driving conditions, and it may differ from factory parts in detail though it is built for direct replacement performance.
Best for: Risk-averse mainstream buyers who want a straightforward, factory-replacement style catalytic manifold to fix emissions-related faults without custom work or complicated sourcing.
Less Ideal for: Shoppers seeking parts for different Nissan models such as the Murano or those who require a California-compliant catalytic solution should look elsewhere.
- Direct-fit flange and bolt pattern to simplify installation on listed Nissan Sentra models
- Includes gaskets and hardware for a complete bolt-on replacement
- Stainless steel construction with CNC MIG welds for improved structural strength
- EPA compliant design intended to clear emissions-related fault codes
- Not legal for sale or shipment to certain states which limits availability for some buyers
- Fitment is specific to listed Sentra years and engines so it will not work on other Nissan models including the Murano
Verdict A ready-to-install, stainless steel direct-fit catalytic manifold for the specified Sentra models that removes emissions faults without custom modification.
6. AngyMeck Cast Iron Exhaust Manifold Pair (Left & Right)
| Brand | AngyMeck |
|---|---|
| Material | Cast Iron |
| Package Contents | Manifold, Manifold Gasket, Flange Gasket, Studs, Nuts, Springs |
| Compatible Years/Models | 1988–1995 Chevrolet/GMC trucks and select 1991–1995 models |
These cast-iron exhaust manifolds are sold as a left and right pair and come with manifold and flange gaskets plus studs, nuts, and springs to simplify installation. They are intended as direct replacement manifolds for older GM small-block and V8 applications and are typically used to repair cracked or leaking stock manifolds, restore exhaust routing, and stop header leaks that can affect emissions and idle quality. The cast-iron construction mirrors factory-style parts so heat management and long-term durability are similar to the original design. Included hardware and gaskets reduce the need to source extra parts, and several users report good fitment and straightforward installation after minor prep such as cleaning mating surfaces. Limitations to expect are the need to confirm exact part numbers and appearance before purchase because this listing targets specific GM models and years, and some installers may need to ream or adjust small ports like the EGR nipple; manifold mounting bolts are not always included so check what your vehicle requires. These are a budget-focused replacement that balances cost with largely factory-like function.
Best for: Practical optimizers looking for a low-cost, functional replacement to restore exhaust sealing and emissions control on an older vehicle without chasing OEM pricing.
Less Ideal for: Buyers who need a direct fit for modern or different-brand vehicles, or who want a high-performance header upgrade rather than a factory-style replacement.
- Cast iron construction matches factory-style heat resistance and durability
- Ships with manifold and flange gaskets plus studs, nuts, and springs for easier installation
- Reported consistent fitment for the listed compatible GM models after basic prep
- Designed for specific older GM trucks and vans so not compatible with other makes like the Nissan Murano
- May require minor port rework or test-fitting for features like the EGR nipple on some units
- Does not include every possible mounting bolt for every vehicle variation so additional fasteners may be needed
Verdict A budget-friendly cast-iron pair that restores factory-style function for the listed older GM trucks, but it is not suitable for unrelated vehicles such as the Nissan Murano.
7. A-Premium Front Exhaust Manifold Catalytic Converter with Gasket Kit
| Vehicle Fitment | Nissan Altima 2007–2013 L4 2.5L |
|---|---|
| EPA Compliant | Yes (restricted states apply) |
| Position | Front |
| Body Material | Stainless Steel |
| Gasket & Bolts Included | Yes |
This A-Premium unit combines the front exhaust manifold and catalytic converter into a single, factory-style replacement meant to restore emissions control and exhaust routing. It is intended to be used where the factory front manifold/catalytic assembly has failed, comes with the gaskets and bolts needed for installation, and accepts the factory oxygen sensor locations so you can reuse or replace sensors as required. The part is stainless steel and features welded 5-bolt inlet and 3-bolt outlet connections that match the original mounting pattern, which simplifies fitting and reduces modification during installation. It is EPA-compliant for federal emissions but restricted in certain states, and the manufacturer offers a one-year unlimited-mileage guarantee. Some buyers report excellent fit and durability while a few report internal failures after months of use, so long-term longevity can vary. This is a practical, budget-conscious replacement that trades the certainty of dealer parts for lower cost and faster availability when you need a direct-fit front manifold and catalytic assembly.
Best for: Balanced buyers who want a cost-effective, factory-style replacement to get a Nissan Altima 2.5L back to proper emissions operation without dealer pricing and who prioritize straightforward fitment and included installation hardware.
Less Ideal for: Buyers in states with stricter emissions laws or owners who prioritize guaranteed long-term OEM-backed longevity should consider dealer or certified converters instead.
- Combined manifold and catalytic converter for direct-fit replacement
- Includes gaskets and bolts so additional hardware is not required for typical installs
- Stainless steel construction resists corrosion better than basic mild-steel aftermarket parts
- Welded inlet/outlet flange pattern matches factory mounting for straightforward installation
- EPA-compliant for federal emissions (not for restricted states)
- Not legal for sale or use in California, Colorado, New York, and Maine due to state emissions rules
- Some users reported premature internal failure on a minority of units, indicating variable long-term durability
Verdict A practical, factory-pattern front manifold catalytic assembly that offers strong fit and included hardware for budget-conscious buyers, but check state emissions rules and accept some variability in long-term durability.
Choosing the Right Nissan Murano Exhaust Manifold: Key Factors to Consider
Fitment and Bolt Pattern
Correct fitment is essential because the manifold must align precisely with the cylinder head ports and bolt holes. A mismatched bolt pattern or incorrect port alignment can cause installation headaches, require machining, or lead to chronic leaks.
When assessing fitment, consider whether the part is listed as a direct replacement for the Nissan Murano and whether it includes installation hardware. Accurate flange shape and thickness help ensure a flat sealing surface and reduce stress on studs during torqueing. Fitment also affects sensor and component clearance around the manifold, which impacts how easily the part can be installed and maintained.
Material and Heat Resistance
Exhaust manifolds must withstand high temperatures and repeated heating cycles, so material choice affects longevity. Cast iron is durable and resists warping, while stainless steel options can offer lighter weight and better corrosion resistance depending on alloy and construction.
Also consider thermal expansion properties; materials that expand differently than the head can stress gaskets and studs. Heat-resistant coatings or ceramic treatments can reduce surface corrosion and radiated heat, which benefits nearby components and under-hood temperatures.
Sealing Surface and Gasket Compatibility
A flat, properly machined sealing surface helps prevent exhaust leaks at the head and at collector joints. Gasket compatibility matters because not all gaskets seal equally under high temperatures or small warpage.
Look for manifolds specified to work with OEM-style or reinforced gaskets and check whether the part includes a gasket or recommends a specific type. Proper sealing reduces exhaust noise, prevents exhaust gas intrusion into the engine bay, and helps maintain correct oxygen sensor readings for proper engine management.
Collector Design and Flow Characteristics
Collector geometry influences how exhaust pulses merge and how efficiently exhaust gases evacuate the cylinders. A well-designed collector can reduce backpressure and improve scavenging, which can translate to smoother throttle response and better overall engine efficiency.
Consider the collector shape, run length, and whether the design introduces sharp bends that could create turbulence. While exact performance gains depend on the broader exhaust system, collector design still affects how the manifold interacts with downstream components and the engine's breathing.
Corrosion Resistance and Finish
Exhaust manifolds are exposed to moisture, road salts, and thermal cycling, so surface treatment and base metal choice affect lifespan. Protective coatings, high-grade stainless alloys, and proper welding techniques all reduce the risk of premature corrosion.
Inspect finish details and any stated corrosion-resistant treatments. Even if a part starts in good condition, poor corrosion resistance can lead to cracks, stud failures, or difficult future removal, increasing long-term maintenance effort.
Ease of Installation and Serviceability
Installation difficulty influences labor time and the likelihood of correct installation. Factors such as access to mounting studs, sensor locations, and whether the manifold reuses existing heat shields matter for practical serviceability.
Also consider whether the design allows for straightforward gasket replacement or if the manifold complicates future repairs. Parts that minimize interference with surrounding components and allow access to oxygen sensors and EGR ports reduce labor and decrease the chance of installation errors.
FAQ
What are common exhaust manifold symptoms on a Nissan Murano?
Common symptoms often include louder exhaust noise near the engine, a ticking sound during cold starts, reduced engine performance, or a noticeable exhaust smell in the cabin. Symptoms depend on the type and location of the problem and may appear gradually. If you notice any of these signs, a focused inspection can help determine whether the manifold or its gasket is the cause.
How can I diagnose an exhaust manifold leak?
Diagnosing a leak usually starts with a visual inspection for soot, cracks, or warped flanges around the manifold. With the engine cold, listen for ticking or unusual exhaust noise; a smoke test or using a length of hose as a stethoscope can help isolate the source. Pay attention to changes in engine performance and oxygen sensor behavior, which can also suggest an exhaust leak.
Should I replace the exhaust manifold gasket when swapping the manifold?
It is generally advisable to install a new gasket when replacing or swapping a manifold because gaskets compress and conform to sealing surfaces over time. Reusing an old gasket can increase the risk of leaks and may require removing the part again soon after installation. Using the recommended gasket type helps ensure a reliable seal.
What causes exhaust manifold cracks and how serious are they?
Cracks often result from repeated thermal cycling, corrosion, or stress from incorrect torqueing of studs. Small cracks can cause noise and minor leaks, while larger cracks may affect engine performance and increase under-hood temperatures. Severity depends on crack size and location; many cracks warrant repair or replacement to prevent further damage.
How does material choice affect exhaust manifold longevity?
Material affects resistance to warping, cracking, and corrosion. Cast iron typically resists heat-induced warping well and is durable, while certain stainless steels resist corrosion and can be lighter. The right material for longevity balances thermal characteristics, corrosion resistance, and how it interfaces with the engine head.
Will installing a new exhaust manifold improve fuel economy?
Replacing a faulty or leaking manifold can restore proper exhaust flow and sensor readings, which may improve efficiency compared with a compromised system. However, a new manifold alone is unlikely to dramatically change fuel economy unless the old part was causing significant leaks or backpressure issues. Overall gains depend on the condition of the entire exhaust and engine management systems.
How We Chose the Best Nissan Murano Exhaust Manifold
We evaluated candidate exhaust manifolds specifically for the Nissan Murano using several concrete, vehicle-focused filters. Fitment and bolt pattern accuracy were primary criteria to ensure a direct replacement without extensive modification. Heat resistance and material quality were assessed to predict long-term durability under elevated exhaust temperatures. Gasket sealing surfaces and flange flatness were considered to reduce the chance of leaks. Ease of installation, including access to studs and compatibility with existing sensors, was checked to estimate labor complexity. Corrosion resistance and coating or finish were reviewed for longevity in varied climates. We excluded candidate parts that required fabrication, significant modification, or did not explicitly note compatibility with Nissan Murano fitment. We also filtered out components lacking clear flange specifications or that used substandard sealing surfaces. The final selection favored parts that met fitment, thermal, sealing, and installation criteria relevant to Murano owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing an exhaust manifold for a Nissan Murano, prioritize correct fitment, durable materials, and a properly machined sealing surface. These factors reduce the risk of leaks, make installation easier, and contribute to long-term reliability. Weigh tradeoffs among material, corrosion resistance, and collector design based on how you use the vehicle. Good gasket compatibility and serviceability often deliver the best balance between performance and maintenance effort.
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