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If your Ridgeline is showing exhaust manifold symptoms such as ticking noises, reduced engine smoothness, or smells near the engine bay, choosing the right manifold matters for daily drivability and long-term durability. This guide shortlists the top options for Honda Ridgeline exhaust manifold needs and explains why each made our list. We evaluated candidates for proper fitment, material and thermal resistance, and how well they control common issues like leaks and gasket failure. Read on to see the vetted picks and the criteria we used to select them.
Looking for other parts? See all Honda Ridgeline parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | A-Premium Right Side Engine Exhaust Manifold Kit with Gasket, Bolts & Nuts |  |
| Best Quality Built to a higher standard if you want something more solid | Dorman 674-732 Passenger Side Exhaust Manifold Kit with Gaskets and Hardware |  |
| Best Budget The cheapest option that still gets the job done reliably | RISON-Titanium M10 x 1.5 x 54mm Titanium Exhaust Manifold Stud Kit (12 pcs) |  |
| Most Sold A high-volume bestseller chosen again and again | A-Premium Exhaust Manifold Kit with Gaskets, Bolts and Heat Shield |  |
| Best Overall The best all-around choice for most situations | Dorman 674-777 Exhaust Manifold Kit with Gaskets and Hardware |  |
1. A-Premium Right Side Engine Exhaust Manifold Kit with Gasket, Bolts & Nuts
| Brand | A-Premium |
|---|---|
| Material | Cast Iron |
| Fitment Type | Direct Replacement |
| Package Includes | Manifold, inlet gasket, bolts, nuts, heat shield |
This A-Premium kit supplies a right-side cast-iron exhaust manifold plus an inlet gasket, two bolts and two nuts and a heat shield for a direct-replacement installation. It is intended to replace a warped or leaking manifold and restore normal exhaust flow and eliminate ticking noises caused by leaks or broken studs. Installation is typically performed by a professional or experienced DIYer and reviewers report straightforward fit when correct mounting hardware and studs are available. The cast-iron construction promises high temperature resistance and stable performance under heavy use, while the included gasket and shield reduce the parts you need to source separately. Common limitations seen in real-world installs are mismatched or short bolts in the kit and occasional gasket hole misalignment, which may require buying different bolts or a correct gasket and addressing stuck broken fasteners on older engines. Expect to verify hardware fitment and have proper extraction tools when replacing a manifold on a worn engine.
Best for: A reliability-focused buyer who prioritizes a durable, factory-replacement repair to stop exhaust leaks and eliminate ticking noises and who prefers a straightforward parts solution rather than a performance upgrade.
Less Ideal for: Drivers seeking a vehicle-specific performance manifold or a complete hardware kit including studs and all fasteners should consider other options or purchase additional parts separately.
- Includes manifold, inlet gasket and basic mounting hardware so fewer separate parts are needed
- Cast iron construction offers durability and heat resistance for long-term exhaust duty
- Heat shield included to protect surrounding components and reduce heat soak
- Designed as a direct replacement to match factory mounting locations and restore exhaust sealing
- Kit bolts may be shorter than some vehicle requirements requiring replacement hardware
- Gasket in the kit may not match all bolt hole patterns for every application
- Does not include manifold studs, which are commonly needed when replacing a seized or broken stud
Verdict A practical, cast-iron right-side replacement manifold that restores sealing and durability but often requires sourcing correct bolts or studs for a trouble-free install.
2. Dorman 674-732 Passenger Side Exhaust Manifold Kit with Gaskets and Hardware
| Installation Type | Bolt-On |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | Dorman Products |
| Position | Center |
This Dorman exhaust manifold kit replaces a cracked or warped passenger-side manifold with a heavier-duty ductile iron unit designed to resist heat-related distortion. It is supplied as a complete kit with the manifold, flange gaskets, manifold gasket, studs and nuts so you can do a single-order repair instead of sourcing parts separately. Typical use is a like-for-like replacement on the vehicle it fits, offering a bolt-on installation that mirrors factory interfaces for straightforward fitment. The machined finish and heavier material improve long-term durability compared with lower-grade cast iron parts, but several buyers note the included gasket and some flange hardware are lower quality than aftermarket premium brands, so plan to swap in higher-grade gaskets or bolts if you want the best sealing and corrosion resistance. A few owners needed minor trimming or extra fasteners during installation, so basic fitting checks and a torque sequence are advised before finishing the job. For performance-focused owners wanting a durable, factory-replacement manifold that reduces the risk of cracking, this is a strong option if you upgrade the gasket and fasteners during installation.
Best for: Performance-oriented buyers who prioritize a durable, factory-replacement manifold that can handle higher heat and stress and who are comfortable upgrading gaskets and hardware for the best long-term seal.
Less Ideal for: Buyers seeking a plug-and-play, premium sealed solution without any additional parts purchases or modification should consider a kit that includes higher-grade gaskets and bolts or a professional-specified performance manifold.
- Ductile iron construction is more resistant to warping and cracking than lower-grade iron
- Complete kit includes manifold, manifold gasket, flange gaskets, studs and nuts for one-order repairs
- Reverse-engineered for direct bolt-on fit to match factory mounting points
- Machined exterior finish for consistent mating surfaces
- Included gasket and some supplied fasteners are reported as lower quality and may need replacement
- Some users required minor trimming or grinding for sensor clearance on certain installs
Verdict A sturdier ductile-iron, direct-fit replacement manifold aimed at long-term durability for performance-minded owners willing to upgrade gaskets and bolts during installation.
3. RISON-Titanium M10 x 1.5 x 54mm Titanium Exhaust Manifold Stud Kit (12 pcs)
| Material | Titanium GR5 6AL4V |
|---|---|
| Fastener Size | M10 x 1.5 |
| Length | 54mm |
| Pieces Included | 12 studs, 12 nuts, 12 washers |
This kit supplies twelve M10 x 1.5 x 54mm GR5 titanium studs with matching 12-point nuts and flat washers intended to replace factory manifold hardware on compatible engines. In practice the studs are used to secure the exhaust manifold to the head where corrosion resistance and lower weight matter; titanium resists rust and keeps hardware looking cleaner than steel. The package is organized with individually bagged pieces and includes nuts and washers so you get a full hardware set for a manifold reinstall. Buyers report the studs match factory thread size and fit typical manifold applications, and the titanium construction should reduce seizing and corrosion over time. However some users experienced problems with the hex drive hole stripping when torquing, and a few reported studs twisting under torque, which suggests care is required during installation and a proper stud installation tool or double-nut method is recommended. Also the 54mm length may be too short for some Ridgeline manifold configurations, so confirm thread engagement before installation.
Best for: Budget-conscious Ridgeline owners seeking a corrosion-resistant, lightweight replacement hardware set who prioritize cost savings over premium brand assurance.
Less Ideal for: Owners who want guaranteed torque reliability or who prefer verified OEM-fit hardware for high-mileage or high-heat applications should consider factory-quality replacements or proven aftermarket premium studs instead.
- Aerospace-grade GR5 titanium resists corrosion and keeps hardware from seizing to hot exhaust components.
- Includes a complete set of studs, 12-point nuts, and flat washers so no extra parts are needed for a manifold reinstall.
- Individually packaged pieces reduce damage in transit and make inventory during install easier.
- Lightweight titanium reduces rotating mass where applicable and gives a high-end appearance.
- Some users reported the internal hex drive can strip during torqueing, limiting ease of installation.
- A few reviews describe studs snapping or twisting under torque, indicating inconsistent strength or installation risk.
- 54mm length may not provide adequate thread engagement on all Ridgeline manifold setups.
Verdict A cost-minded way to get corrosion-resistant titanium manifold hardware for a Ridgeline, but use the right installation tools and confirm the 54mm length fits your manifold to avoid failures.
4. A-Premium Exhaust Manifold Kit with Gaskets, Bolts and Heat Shield
| Brand | A-Premium |
|---|---|
| Material | Cast Iron |
| Fitment Engine | 1.8L 1ZZ-FE |
| Includes | Manifold, gasket, bolts, springs, washers, heat shield |
This A-Premium kit provides a full exhaust manifold replacement packaged with a manifold gasket, flange hardware, springs, washers and a heat shield so you get most small parts needed for installation. Made from cast iron, the manifold is heavy and built to handle high temperatures and typical exhaust loads; owners report it restores normal exhaust routing and engine smoothness when installed. Common real-world issues are fitment and alignment of the heat shield and support bracket, so minor trimming or drilling is sometimes required to make the bracket holes match the factory mounting points. Some buyers also noted the supplied springs and bolts may not match OEM length or grade exactly, so reusing original hardware or sourcing higher-grade bolts can simplify installation and torqueing. Welding and finish quality varies between units, so expect to inspect the part before fitting. For a buyer seeking a largely complete replacement at a mainstream value point, this kit reduces the number of additional parts to source but may need modest fabrication for a perfect fit.
Best for: Risk-averse mainstream buyers looking for a mostly complete, budget-friendly replacement kit that minimizes hunting for missing parts and restores normal exhaust function with modest shop support.
Less Ideal for: Buyers who demand factory-perfect fitment out of the box or who lack access to basic metalwork tools and experience should consider purchasing from a dealer or OEM option instead.
- Includes manifold gasket, flange hardware, springs and heat shield so fewer extra parts are needed
- Cast iron construction offers high temperature resistance and durability
- Packaged as a direct-replacement style kit for easier sourcing of a single unit
- Bracket and heat shield holes can be misaligned requiring drilling or modification
- Supplied bolts and springs may differ from factory lengths or grades
- Some units show inconsistent welding or finish that may need inspection or minor repair
Verdict A practical, mostly complete cast-iron replacement that saves you sourcing small parts but may require minor bracket or hardware adjustments for perfect fit.
5. Dorman 674-777 Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | 674-777 |
| Bolt Pattern (Number of Holes) | 7 |
| Exterior | Machined |
This Dorman exhaust manifold kit supplies a ready-to-install replacement designed to match factory fit and function. It arrives with the gaskets and downpipe hardware needed to complete the job in one purchase, which speeds repairs and avoids repeat orders. The unit is machined and built to resist warping and cracking typical of failed manifolds, so it is intended for routine repair or restoration of a worn or cracked manifold. Installation is typical for a manifold replacement: remove the old part, clean mating surfaces, transfer or replace bolts as needed, and torque to spec. Some users report the included heat shield and a few fasteners may need minor adjustment or replacement with factory bolts for best longevity, so plan to inspect supplied hardware during installation. The kit is a practical option for buyers who want a full repair solution without sourcing separate gaskets and downpipe parts, but long-term durability can vary depending on installation and engine conditions.
Best for: A balanced all-round buyer who wants a factory-style replacement that simplifies repairs and avoids multiple parts orders while prioritizing reliable fit and practical convenience.
Less Ideal for: People seeking a vehicle-specific, performance-oriented upgrade or guaranteed long-term OEM-level durability without inspecting supplied hardware should consider alternatives or OEM parts.
- Includes all necessary gaskets and downpipe hardware for a one-order repair
- Machined construction aimed at resisting warping and cracking
- Reverse-engineered to match factory fit for straightforward installation
- Covers complete repair needs so you do not have to buy multiple parts
- Some supplied fasteners and the heat shield may need adjustment or replacement for best durability
- Not explicitly listed as CARB-compliant for every application in this listing
Verdict A complete, factory-style replacement kit that simplifies exhaust manifold repairs by bundling gaskets and hardware, but inspect the included fasteners and heat shield during installation.
Choosing the Right Honda Ridgeline Exhaust Manifold: Key Factors to Consider
Fitment and Vehicle-Specific Compatibility
Accurate fitment to the Honda Ridgeline’s exhaust ports and mounting points determines how straightforward installation will be and how well the manifold seals. A component designed for the exact engine and chassis reduces the need for modification and minimizes stress on bolts and gaskets.
Poor fitment can lead to misaligned flanges, uneven gasket compression, and early leaks. When a manifold matches the vehicle’s geometry, torque specifications are more likely to hold, and the risk of damaging studs or exhaust ports is lower. Prioritize options that explicitly state compatibility with the Ridgeline and include the necessary hardware or clear guidance on required fasteners.
Material and Thermal Durability
Manifold materials and construction affect resistance to heat-induced warping and cracking over time. Cast iron handles high temperatures well and resists thermal shock, while some stainless steels offer better corrosion resistance and lighter weight but may differ in thermal expansion characteristics.
Consider how the material performs under repeated heating and cooling cycles typical of commuting and towing. Manifolds that maintain dimensional stability reduce the chance of flange warping and the resulting leaks. Look for information about heat treatments, coatings, or grade of metal to gauge long-term durability in the Ridgeline’s operating environment.
Flange Quality and Sealing Surface
The flatness and finish of the flange surfaces determine how effectively the manifold mates to the cylinder head through a gasket. Uneven or rough flanges increase the chance of exhaust manifold leaks and noisy operation. A properly machined flange ensures even gasket compression across all ports.
High-quality flanges can also simplify installation by reducing the need for shims or extra gasket layers. Pay attention to flange thickness and whether the manufacturer specifies machining or finish tolerances. Good sealing surfaces contribute directly to quieter operation and lower risk of exhaust gases escaping into the engine bay.
Gasket and Hardware Included
A manifold that includes a correctly specified gasket and the proper bolts or studs simplifies installation and improves the likelihood of a reliable seal. Using mismatched gaskets or reused hardware can lead to leaks and make diagnosing exhaust manifold symptoms more difficult.
Included hardware should be rated for high-temperature service and match the thread engagement required by the cylinder head. Where hardware is not included, you should verify compatibility and plan to source heat-rated fasteners and a gasket sized for the Ridgeline’s ports to avoid a marginal seal or early failures.
Resistance to Corrosion and Environmental Wear
Because exhaust components are exposed to moisture, road salt, and combustion byproducts, corrosion resistance influences lifespan. Protective coatings, higher-grade stainless steels, or castings with corrosion-resistant treatments help prevent rust that can lead to cracks or weakened mounting points.
Evaluate how the manifold will perform in your local climate and whether surface treatments are specified. Long-term corrosion resistance reduces the likelihood of projects to swap exhaust manifold parts prematurely and keeps sealing surfaces intact for longer service intervals.
FAQ
What are common exhaust manifold symptoms on a Honda Ridgeline?
Common signs include ticking or popping noises during acceleration, a noticeable exhaust smell in the engine bay, reduced engine smoothness, and sometimes decreased fuel economy. These symptoms often indicate a leak at the flange or a degraded gasket, but diagnosis should check flange flatness and fastener torque as well.
How can I diagnose an exhaust manifold leak safely?
Listen for high-pitched ticking at startup and under load, and check for soot or black residue around flanges and gasket seams. With the engine cool, inspect fasteners and flanges for looseness or visible gaps. A smoke test or professional inspection can confirm the leak location without risky engine operation.
Should I replace the gasket or the entire manifold if I find a leak?
It often depends on the condition of the flange and the manifold material. If the flange is flat and the manifold shows no cracks or severe corrosion, replacing the gasket and hardware may restore a reliable seal. If the flange is warped, cracked, or corroded, replacing the manifold is usually the more durable solution.
Are there tradeoffs between OEM and aftermarket exhaust manifolds?
OEM-style parts typically prioritize exact fit and original sealing characteristics, while aftermarket options may offer different materials or improved corrosion resistance. The best choice depends on whether you value factory-fit replication or want a component with specific performance or durability traits, bearing in mind installation and fit considerations.
How long does exhaust manifold installation usually take?
Installation time varies with experience and whether related components need attention, but a straightforward swap often takes a few hours. Expect additional time if studs are seized, flange preparation is required, or heat shielding and other parts must be removed and reinstalled.
How We Chose the Best Honda Ridgeline Exhaust Manifold
We focused on components engineered specifically for the Honda Ridgeline and filtered entries by fitment accuracy, thermal performance, corrosion resistance, and flange quality. Fitment accuracy was prioritized because a precise match to the Ridgeline exhaust ports reduces installation headaches and the chance of exhaust leaks. Thermal performance and material durability were assessed to predict long-term resistance to warping, cracking, and gasket degradation in engine heat cycles. Corrosion resistance matters in varied climates and extends service life, while flange and threading quality affects sealing and the likelihood of post-install leaks. We excluded parts that lacked documented compatibility with the Ridgeline, items without clear material specifications, and those with inadequate fastener or flange details. We also filtered out fittings that clearly required major modification or fabricating to install. The resulting list emphasizes reliable fit and long-term sealing performance rather than novelty features or unverified compatibility.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right exhaust manifold for a Honda Ridgeline comes down to prioritizing accurate fitment, durable materials, and well-machined sealing surfaces. Assess the flange condition, the quality of included gaskets and hardware, and corrosion resistance to weigh short-term repairs against longer-term reliability. Balance the tradeoffs between replacing just the gasket versus the full manifold based on flange flatness and visible damage. Prioritize options that reduce the chance of recurring leaks and minimize future labor by matching vehicle-specific specifications.
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