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If you drive a Scion xD, the right exhaust manifold affects engine performance, noise levels, and long-term durability. You want a part that fits the engine precisely, stands up to heat cycles, and minimizes leaks so the car runs smoothly and efficiently. This guide shortlists the top picks for Scion xD exhaust manifold options and explains the practical differences between choices. We evaluated candidates for fitment, material quality, and thermal durability to help you find a durable replacement that matches your priorities. Read on to see the top options and why they made the list.
Looking for other parts? See all Scion xD parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Dorman Exhaust Manifold Kit 674-878 for Select Toyota Models |  |
| Best Quality Built to a higher standard if you want something more solid | Dorman 674-810 Exhaust Manifold Kit with Gaskets and Hardware |  |
| Best Value The sweet spot between price and what you get | Dorman 674-812 Exhaust Manifold Kit with Gaskets and Hardware |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Exhaust Manifold Kit with Gaskets and Hardware for Scion xD / Toyota Corolla 1.8L |  |
| Highest Rated A top-rated pick with lots of positive feedback | A-Premium Exhaust Manifold Kit for Scion xD / Toyota Corolla & Matrix 1.8L |  |
| Most Popular A crowd favorite that many people choose with confidence | Dorman Driver Side Exhaust Manifold Kit (includes gaskets and hardware) |  |
| Best Seller A high-volume bestseller chosen again and again | Dorman 674-803 Exhaust Manifold Kit with Gaskets and Hardware |  |
1. Dorman Exhaust Manifold Kit 674-878 for Select Toyota Models
| Manufacturer | Dorman Products |
|---|---|
| Model | Dorman 674-878 |
| Manufacturer Part Number | 674-878 |
| OEM Part Number | 1714121130 |
This Dorman exhaust manifold kit is a direct-replacement style manifold that arrives with gaskets and downpipe hardware for a one-job installation. It is engineered to match the fit and function of the original manifold and is intended for use on the specified Toyota applications listed by the manufacturer. In practice this means the part simplifies repairs by avoiding multiple trips for missing hardware and speeds up installation for DIY mechanics or independent shops. The manifold is described as durable and built to resist warping and leaking, which helps maintain exhaust sealing and emissions performance after replacement. Expect a straightforward bolt-on swap when fitment is correct, though buyers should verify vehicle trim fitment before ordering. The kit is not a performance upgrade, so users seeking increased flow or power should look at dedicated performance manifolds instead.
Best for: Balanced, all-round owners looking for a dependable, no-fuss replacement that restores factory function and minimizes repair time and parts sourcing.
Less Ideal for: Buyers seeking a high-flow or performance-oriented manifold for power gains or custom exhaust builds should choose a dedicated performance part instead.
- Includes all necessary gaskets and downpipe hardware for a complete repair
- Engineered to match factory fit and function for direct replacement
- Durable construction intended to resist warping and leaking
- Ready-to-paint exterior for a tidy finish if desired
- Not marketed as a performance or high-flow upgrade
Verdict: A practical, complete replacement manifold kit that restores factory fit and function while including everything needed for a single-install repair.
2. Dorman 674-810 Exhaust Manifold Kit with Gaskets and Hardware
| Includes | Exhaust Manifold, Manifold Gasket, Flange, Bolts, Springs |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Equivalent Part Number | 171410T080; 1714137130 |
This Dorman exhaust manifold kit is a ready-to-install replacement engineered to match the fit and function of the factory manifold for listed Scion and Toyota vehicles, including the Scion xD. It ships with the manifold plus the necessary gasket, flange and fasteners so installers can complete the repair in a single visit. The unit is built to resist warping and cracking and is intended for long-term service under normal driving and performance loads. For performance-oriented owners the main benefit is a factory-quality replacement that restores exhaust routing and backpressure without the variables of a repaired or patched original. Expect straightforward installation when correct fitment is confirmed and fewer parts to source compared with separate purchases. Limitations include no performance-enhancing tuning or port-matching beyond stock specifications and the part must be confirmed for your exact year and trim before purchase to ensure proper fit.
Best for: Performance-oriented owners seeking a high-quality, factory-replacement manifold to restore exhaust integrity quickly and reliably without modifying engine tuning.
Less Ideal for: Buyers looking for upgraded performance manifolds, modified exhaust flow, or custom port-matched headers should consider performance-specific aftermarket options instead.
- Includes manifold plus necessary gasket and downpipe hardware for a one-box repair
- Engineered to match factory fit and function for listed vehicles, simplifying installation
- Constructed to resist warping and cracking for durable, long-term service
- Made by a long-established aftermarket supplier with parts designed for repair convenience
- Designed as a direct replacement so it does not increase performance over stock
- Fitment must be verified for exact year and trim before installation
Verdict: A durable, factory-style replacement manifold kit that provides a complete, install-ready repair for compatible Scion and Toyota models.
3. Dorman 674-812 Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | Dorman 674-812 |
| Exterior | Machined |
| OEM Part Number | 171410T040; 1714137050; 1714137051 |
This Dorman exhaust manifold kit is a direct-fit replacement designed to match the function and mounting of the factory manifold for specified Scion xD, Toyota Corolla, and Toyota Matrix model years. It ships with all required gaskets and downpipe hardware so you can complete the repair with a single part, which simplifies a typical replacement job and cuts trips to the parts store. The manifold is machined for consistent mating surfaces and is built to resist warping and cracking that commonly cause leaks. For a practical DIYer or independent shop working on a common failure manifold, the included hardware and reverse-engineered fit save time and reduce installation headaches. Limitations are that fitment is limited to the specified models and years so you must confirm your trim, and this aftermarket part may not be an exact match for every factory surface finish or tone compared with an OEM unit.
Best for: Practical optimizers who want a cost-effective, time-saving repair solution for a common exhaust-manifold failure on Scion xD models and prioritize getting the job done with minimal parts sourcing.
Less Ideal for: Buyers seeking an exact factory-original part or those who need a manifold for a different vehicle not listed should look at manufacturer-specific or OEM options instead.
- Includes all necessary gaskets and downpipe hardware for a one-order, complete repair
- Engineered as a direct replacement to match factory fit and mounting points
- Machined exterior surfaces help reduce the risk of leaks and improve sealing consistency
- Durable construction intended to resist warping and cracking over time
- Compatibility limited to specific Scion xD, Toyota Corolla, and Toyota Matrix years and trims
- Aftermarket finish and sound characteristics may differ slightly from factory manifolds
Verdict: A ready-to-install, budget-friendly replacement manifold kit that includes all gaskets and hardware to simplify exhaust repairs on specified Scion xD and related Toyota models.
4. A-Premium Exhaust Manifold Kit with Gaskets and Hardware for Scion xD / Toyota Corolla 1.8L
| Fitment | Scion xD 2013-2014 L4 1.8L (also Toyota Corolla/Matrix 1.8L listed) |
|---|---|
| Material Type | Metal, Stainless Steel |
| Includes | Manifold, manifold gasket, flange gasket, 2 bolts, 2 springs |
| Grade Type | Standard Replacement |
This A-Premium exhaust manifold kit supplies a direct-replacement stainless steel manifold plus the necessary gaskets and basic hardware for Scion xD and Toyota Corolla 1.8L L4 applications. It is typically used to replace a cracked or leaking factory manifold to restore exhaust routing and reduce exhaust noise and fumes in the engine bay. The kit includes a manifold, manifold gasket, flange gasket, two bolts and two springs which simplifies a straightforward swap without sourcing extra parts. Constructed from stainless steel and sold as a standard replacement, it aims to offer corrosion resistance and an economical alternative to higher-priced factory or performance units. Practical benefits include bundled gaskets and hardware that shorten repair time and a one-year unlimited-mileage guarantee on the part itself. Limitations are that the kit does not include a heat shield and it is a budget-grade replacement so fit and finish may require minor adjustments compared with factory-quality manifolds.
Best for: Budget-conscious owners looking for an affordable, bundled replacement manifold to repair exhaust leaks and get a Scion xD back on the road without sourcing extra parts.
Less Ideal for: Drivers seeking a factory-quality exact match or a high-performance aftermarket upgrade should consider OEM replacements or performance manifolds instead.
- Complete kit includes manifold, manifold gasket, flange gasket and basic bolts/springs to avoid separate parts ordering.
- Stainless steel construction improves corrosion resistance versus plain steel units.
- Direct-replacement fitment for 1.8L L4 Scion xD and compatible Corolla/Matrix models simplifies installation.
- One-year unlimited-mileage guarantee on the part provides added purchase reassurance.
- No heat shield included which may require reusing the original shield or adding heat protection separately.
- Budget-grade manufacturing may need minor fitment trimming or alignment during installation.
Verdict: An affordable, all-in-one stainless steel replacement manifold kit that gets a Scion xD's exhaust sealed and back to service without extra parts.
5. A-Premium Exhaust Manifold Kit for Scion xD / Toyota Corolla & Matrix 1.8L
| Fitment | Scion xD 2008-2012; Toyota Corolla/Matrix 2009-2010 L4 1.8L |
|---|---|
| Material | Stainless Steel |
| Package Contents | Manifold, gasket, flange gasket, 2 bolts, 2 springs |
| Grade Type | Standard Replacement |
This A-Premium exhaust manifold kit replaces the factory manifold on Scion xD and the 2009–2010 Corolla/Matrix 1.8L engines and ships with the manifold, primary gasket, flange gasket, bolts, and springs for a straightforward swap. Made from stainless steel and built to match original fitment, it is intended as a direct replacement for worn or cracked manifolds and helps restore proper exhaust flow and engine smoothness. The kit omits a heat shield but includes the fasteners needed for reinstallation, which speeds up a do-it-yourself replacement or makes life easier for a shop install. Practical benefits include corrosion resistance, good high-temperature performance, and matching port shape for a reliable seal with factory-style gaskets. Limitations are the lack of a heat shield and that fitment is limited to specified 1.8L models, so buyers should confirm vehicle compatibility before purchasing.
Best for: Reliability-focused owners who value a factory-style, durable replacement to restore exhaust sealing and smooth engine operation on specified Scion xD or Toyota 1.8L models.
Less Ideal for: Buyers who need a performance-tuned or heat-managed aftermarket manifold or those who own different engine sizes or model years outside the listed fitment should look elsewhere.
- Stainless steel construction offers good corrosion and high-temperature resistance
- Includes necessary gaskets, bolts, and springs for a more complete install
- Manufactured to match original port shape for straightforward fitment
- Sold as a direct replacement kit, simplifying DIY or shop installation
- Heat shield is not included, which may require reusing the factory shield or sourcing a replacement
Verdict: A factory-style stainless steel replacement manifold kit that restores exhaust sealing and engine smoothness for the specified Scion xD and Toyota 1.8L models.
6. Dorman Driver Side Exhaust Manifold Kit (includes gaskets and hardware)
| Material | Cast Iron |
|---|---|
| Manufacturer | Dorman Products |
| Bolt Pattern (Number of Holes) | 6 |
| Manufacturer Part Number | 674-522 |
This Dorman exhaust manifold kit replaces a warped or cracked driver-side manifold with a ductile cast iron unit designed for durability under high heat. It is supplied as a complete repair kit with the manifold, manifold gasket, flange gasket, three studs and three nuts so you can perform a single-purchase replacement without repeated trips for parts. The part is reverse-engineered to match factory fit for a straightforward install and the machined exterior suggests decent sealing surfaces at the flanges. Practical buyers will appreciate the emphasis on higher-grade iron to resist future cracking and the included hardware that streamlines installation. Limitations are typical of replacement manifolds: it is a direct replacement rather than a performance header, so it will not increase power or significantly change exhaust tone, and buyers should confirm exact Scion xD engine and year fitment before ordering.
Best for: Convenience-driven owners seeking a straightforward, one-purchase repair solution who prioritize a reliable factory-style replacement and minimal parts sourcing.
Less Ideal for: Enthusiasts seeking performance exhaust upgrades or owners who want an aftermarket header for increased power and sound should look elsewhere.
- Complete kit includes manifold plus gaskets and hardware for a single-order repair
- Constructed from ductile cast iron to better resist warping and cracking from heat
- Reverse-engineered for direct-fit installation to match factory mounting points
- Machined exterior surfaces aid flange sealing and fitment
- Designed as a factory-style replacement so it does not provide performance gains
- Fitment must be confirmed for specific Scion xD engine year and trim before purchase
Verdict: A convenient, all-in-one factory-style replacement manifold kit built from ductile iron to reduce future warping and cracking.
7. Dorman 674-803 Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | Dorman 674-803 |
| Position | Center |
| Exterior | Ready To Paint If Needed |
| OEM Part Number | 101555; 1714121060 |
This Dorman exhaust manifold kit is a direct-replacement unit engineered to match the fit and function of the factory manifold for specified Scion and Toyota vehicles. It ships with all required gaskets and downpipe hardware so the typical installation replaces the manifold and seals in one visit without multiple parts orders. The part is described as reverse-engineered from the factory unit and built to resist common failure modes like warping and leaks, which helps restore exhaust routing and prevents exhaust leaks that can affect performance and emissions. The kit is ready-to-paint if desired and is positioned as a complete repair solution rather than a bare casting. Expect a straightforward bolt-on swap for the listed Scion xA, xB, and Toyota Echo years, but note that fitment must be confirmed for the Scion xD scope in the article and some installations may require basic mechanic tools and time for access in a compact engine bay. This is a practical choice when you want a full hardware-inclusive replacement without sourcing separate gaskets.
Best for: Risk-averse mainstream buyers seeking a reliable, hassle-minimizing repair solution who prioritize factory-quality replacement parts and want a single purchase that covers all required components.
Less Ideal for: Users who need a performance exhaust upgrade or a custom-fit solution beyond factory replacement should look for performance-specific manifolds or vehicle-specific aftermarket options.
- Includes all necessary gaskets and downpipe hardware for a one-order complete repair
- Built to match factory fit and function to simplify installation
- Durable construction aimed at resisting warping, cracking, and leaking
- Fitment is vehicle-specific so you must confirm compatibility before installing
Verdict: A complete, hardware-inclusive factory-replacement manifold kit designed to restore reliable exhaust sealing and fitment with minimal hassle.
Choosing the Right Scion xD Exhaust Manifold: Key Factors to Consider
Material and Heat Resistance
The manifold material affects how well the component resists thermal cycling and corrosion. Cast iron is durable and resists warping but can be heavier, while stainless steel and certain alloy steels offer better corrosion resistance and lighter weight. Material choice influences how the manifold expands and contracts with temperature, which changes how often flanges and fasteners need retorquing.
Higher-grade materials and proper heat treatment reduce the risk of cracks forming at high-stress points. When evaluating options, consider the operating temperature range of your engine and whether the material will tolerate repeated heating and cooling without deforming or failing prematurely.
Flange and Bolt-Hole Accuracy
Accurate flange faces and correctly positioned bolt holes are essential for a leak-free seal. Even small misalignments can prevent gaskets from seating properly and create exhaust leaks that cause noise, drivability issues, and potential damage to nearby components. Tight manufacturing tolerances reduce the need for on-vehicle modification or shim work.
Inspect how flanges are finished and whether bolt holes are countersunk or reinforced. A flat, smooth flange face improves gasket contact and reduces the chance of exhaust manifold leak symptoms developing after installation.
Gasket Compatibility and Seal Design
Gasket quality and the manifold's sealing surface design work together to prevent exhaust gases from escaping. Some manifolds are designed for a specific gasket type or include integrated sealing features that simplify installation and improve long-term reliability. A poor match between manifold surface and gasket can lead to early failures and noticeable exhaust-manifold symptoms such as ticking noises or loss of backpressure.
Consider whether the replacement uses standard gaskets or requires an OEM-style gasket. Assess sealing surfaces for grooves, finishes, or raised lips that help retain gasket material under heat and vibration.
Thermal Management and Coatings
Effective thermal management limits heat soak into surrounding engine components and can reduce under-hood temperatures. Some manifolds benefit from ceramic coatings or heat shielding that improve exhaust flow characteristics and protect adjacent parts. Coatings can also slow corrosion and maintain surface integrity over time.
When evaluating options, consider whether the manifold's finish or coating is compatible with your vehicle's environment and whether additional heat shielding may be required during installation to protect nearby wiring and hoses.
Accessibility and Ease of Installation
The physical layout of the Scion xD engine bay affects how easy it is to access manifold bolts, install gaskets, and route hardware. A design that allows for straightforward access to fasteners reduces labor and frustration during replacement. Some manifolds require partial disassembly of surrounding components, while others are engineered to fit into tighter spaces more cleanly.
Think about whether you will perform the work yourself or have a technician install the part. Simpler installation reduces the chance of incorrect torqueing or missed steps that can cause exhaust manifold leak symptoms later.
Durability and Long-Term Maintenance
Consider how the manifold will hold up over time under normal driving conditions. Durability factors include resistance to cracking at welds or stress points, flange integrity after repeated heat cycles, and how easy it is to replace gaskets or fasteners later on. A durable manifold reduces the frequency of interventions and lowers the chance of intermittent exhaust leaks.
Evaluate whether replacement parts and gaskets are readily available and whether the design allows for straightforward future servicing. Good maintainability can be as important as initial fitment when choosing a component.
How We Chose the Best Scion xD Exhaust Manifold
We focused on candidates that deliver reliable fitment and long-term thermal durability specific to the Scion xD engine layout. Key evaluation criteria included material composition and heat resistance, bolt and flange accuracy for correct installation, gasket compatibility to reduce leak risk, and overall manufacturing tolerances that affect long-term sealing and warp resistance. We also assessed ease of installation from a mechanical-access standpoint and the likely longevity under repeated heat cycles. We excluded items without clear engine-specific fitment data, parts that lacked corrosion- or heat-resistant materials, and units with insufficient flange or bolt-hole tolerances. The final list emphasizes parts with proper flange fiat, consistent castings or welds, and designs that minimize the common failure modes for this vehicle. We prioritized specifications and construction quality rather than marketing claims or unverified performance numbers.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common exhaust manifold symptoms I should watch for on a Scion xD?
Common signs include a ticking or tapping noise during cold start or acceleration, reduced engine performance, and a noticeable exhaust smell in the engine bay. Symptoms often depend on the location and severity of a leak or crack and can vary with engine load and temperature.
How do I diagnose an exhaust manifold leak on a Scion xD?
Diagnosis often starts with a careful visual inspection of the flange faces, gaskets, and welds for cracks or soot deposits. A listening test at idle and during revs can localize leaks. In many cases, smoke or a light spray of soapy water around suspected joints while running can reveal escaping gases. Be cautious and perform checks with the engine cool when possible.
When should I replace the exhaust manifold gasket instead of the entire manifold?
If the manifold surface is flat and undamaged but you notice leaking at the joint, replacing the gasket can restore a seal. However, if the flange is warped, cracked, or shows heavy corrosion, a new gasket alone may not fix the problem. Evaluate both the gasket and the mating surfaces before deciding which repair is appropriate.
Can cracks develop in an exhaust manifold, and how serious are they?
Yes, cracks can form at high-stress areas or welds due to thermal cycling. Small cracks may start as intermittent leaks that worsen over time. While a minor crack might only cause noise and reduced backpressure, larger cracks can affect emissions and engine performance and should be addressed promptly to avoid further damage.
How much should I expect to spend on exhaust manifold installation on a Scion xD?
Labor and parts costs vary by location and the complexity of access in the engine bay. Installation labor often depends on how many surrounding components must be removed for access. When budgeting, include potential gasket replacement, fastener replacement, and any required heat shielding or anti-seize treatments that help ensure a long-lasting repair.
Is it worth swapping the exhaust manifold for a different design?
Swapping to a different manifold design can make sense if you need improved flow, reduced weight, or better thermal management, but the benefits depend on your goals. Consider fitment, required modifications, and whether the new design affects downstream components. Evaluate tradeoffs between performance gains and installation complexity.
Conclusion
Choosing the right Scion xD exhaust manifold comes down to balancing fitment accuracy, material durability, and sealing design. Prioritize parts with flat, well-machined flanges and materials that tolerate repeated thermal cycles to reduce the risk of leaks and cracking. Also weigh installation accessibility and long-term maintenance when making a selection. Focusing on those core factors will help ensure a dependable repair or upgrade that minimizes noise and keeps the engine operating as intended.
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