Best Intake Manifold for 9Th Gen Si: Top Performance Picks Reviewed

~ 19 min read

Choosing the best intake manifold for your 9th Gen Honda Civic Si boosts engine performance and efficiency. The right manifold improves airflow, increasing power and throttle response.

This guide covers top intake manifolds compatible with the 9th Gen Si, focusing on quality and fit. It includes options like the WIKIBB fuel injector adapter and Skunk2 Racing manifolds. These parts work well with K20 and K24 engines, common in the 9th Gen Si.

Some manifolds suit other Honda and Acura models too, offering versatility. Aluminum and cold air intake couplers improve durability and airflow. Selecting the right intake manifold helps your engine breathe better, enhancing driving experience. This post helps you understand key features and compatibility to make a smart choice for your Civic Si.

Wikibb Fuel Injector Adapter For Honda Civic Si 9th Gen

WIKIBB For 12+ Honda Civic Si 9th Gen R40 K24 Fuel Injector Adapter RBC Intake Manifold

The WIKIBB For 12+ Honda Civic Si 9th Gen R40 K24 Fuel Injector Adapter RBC Intake Manifold is ideal for automotive enthusiasts and Honda Civic Si owners looking to upgrade or replace their fuel injection system. This product is perfect for those who want to enhance their engine’s performance with a reliable and precisely engineered adapter, ensuring compatibility and optimal fuel delivery.

Pros:

  • High compatibility with 12+ Honda Civic Si 9th Gen models
  • Manufactured by trusted brand WIKIBB ensuring quality and durability
  • Compact dimensions (3.93ā€ H x 7.87ā€ W x 7.87ā€ L) allow for easy installation
  • Improves fuel injector fitment leading to better engine efficiency
  • Enhances the overall intake manifold performance for smoother power delivery

Cons:

  • Designed specifically for Honda Civic Si 9th Gen, limiting use to other models
  • May require professional installation for users unfamiliar with engine components
  • Adapter alone does not improve performance without compatible injectors and tuning

The WIKIBB Fuel Injector Adapter is crafted to precisely fit the RBC Intake Manifold used in the 12+ Honda Civic Si 9th Gen. Its robust construction by WIKIBB ensures that it withstands the demanding conditions of automotive performance upgrades. With its exact dimensions, this adapter guarantees a seamless integration, reducing the risk of leaks or misalignment that can affect engine performance.

By facilitating the proper installation of fuel injectors, this adapter improves fuel atomization and delivery, which translates to more efficient combustion and enhanced throttle response. Users will appreciate the improved engine reliability and potential gains in horsepower when paired with the right fuel injectors and tuning. This makes it a valuable upgrade for those seeking to optimize their Civic Si’s performance without extensive modifications.

Skunk2 Racing Cold Air Intake Coupler

Skunk2 Racing 943-05-0120 9th Gen Cold Air Intake Coupler

The Skunk2 Racing 943-05-0120 9th Gen Cold Air Intake Coupler is ideal for automotive enthusiasts and performance car owners looking to enhance their vehicle’s air intake system. Specifically designed for the 9th generation models, this product is perfect for those who want to improve engine efficiency, increase horsepower, and achieve better throttle response through a high-quality, reliable coupler.

Pros:

  • Manufactured by the trusted brand Skunk2 Racing, known for high-performance automotive parts.
  • Designed specifically for the 9th Gen Cold Air Intake systems, ensuring a perfect fit.
  • Made from durable materials that enhance longevity and withstand high engine temperatures.
  • Helps increase airflow efficiency, leading to improved engine performance.

Cons:

  • Limited to compatibility with 9th generation vehicles only, restricting broader use.
  • Dimensions unspecified, which might require users to verify fitment carefully before purchase.
  • Installation may require some mechanical knowledge or professional assistance for optimal results.

The Skunk2 Racing 9th Gen Cold Air Intake Coupler is engineered to connect air intake components seamlessly, reducing air leakage and maximizing airflow. This results in a more efficient air intake system that improves combustion and overall engine power. Its high-quality construction ensures it withstands the rigors of daily driving and performance conditions without degradation or failure.

Additionally, the coupler’s precise fitment for 9th generation models eliminates common issues like improper sealing or misalignment, which can reduce engine performance. By enhancing the air intake pathway, users can experience better throttle response, smoother acceleration, and potentially increased fuel efficiency. This makes it a worthwhile upgrade for anyone serious about optimizing their vehicle’s performance.

Goodfind68 New Intake Manifold Coolant Adapter Plate

Goodfind68 New Intake Manifold Coolant Adapter Plate compatible with Honda Acura K20 K24

The Goodfind68 New Intake Manifold Coolant Adapter Plate is an excellent choice for automotive enthusiasts and mechanics who own or work on Honda and Acura K20 K24 engines. This product is ideal for those seeking a reliable and efficient replacement part that enhances the cooling system’s performance. If you want to maintain or improve your vehicle’s engine cooling without compromising quality, this adapter plate is designed to meet your needs.

Pros:

  • High compatibility with Honda and Acura K20 K24 engines
  • Durable construction from quality materials by goodfind68
  • Easy installation process saves time and effort
  • Improves coolant flow and engine temperature regulation
  • Enhances engine performance by maintaining optimal temperature

Cons:

  • Limited to specific engine models (K20 K24)
  • May require additional tools or expertise for installation

The Goodfind68 Intake Manifold Coolant Adapter Plate features precision engineering tailored to fit perfectly with Honda and Acura K20 K24 engines. Its sturdy build ensures long-lasting durability, which helps in resisting wear and tear from constant exposure to coolant and engine heat. This adapter plate facilitates improved coolant circulation, which is crucial for maintaining the engine’s optimal operating temperature.

By integrating this adapter plate into your vehicle’s cooling system, you benefit from reduced engine overheating risks and enhanced overall engine efficiency. The design simplifies installation, making it accessible for both professional mechanics and knowledgeable car enthusiasts. Ultimately, this product helps prolong the lifespan of your engine while boosting its performance under various driving conditions.

Skunk2 Racing Pro Series Silver Intake Manifold

Skunk2 Racing 307-05-0260 Pro Series Silver Intake Manifold for Honda D-Series Engines

The Skunk2 Racing 307-05-0260 Pro Series Silver Intake Manifold is ideal for automotive enthusiasts and professional tuners who own Honda D-Series engines. If you are looking to enhance your engine’s performance, improve throttle response, and increase horsepower, this intake manifold is designed specifically for you. It suits those who want a reliable upgrade that combines quality engineering with a sleek silver finish.

Pros:

  • Constructed by the reputable Skunk2 Racing brand, ensuring quality and durability
  • Lightweight design at only 5.0 pounds, which helps reduce overall engine weight
  • Optimized for improved airflow, boosting engine efficiency and power output
  • Attractive silver finish that complements engine bay aesthetics
  • Easy installation with direct fitment to Honda D-Series engines

Cons:

  • Dimensions are unspecified, which may require confirmation for certain custom setups
  • Primarily compatible only with Honda D-Series engines, limiting use for other engine types
  • May require additional tuning for optimal performance gains

The Skunk2 Racing Pro Series Intake Manifold is engineered to maximize airflow within Honda D-Series engines, resulting in enhanced combustion efficiency. This translates to noticeable gains in horsepower and throttle response, crucial for both street and track applications. Its lightweight construction reduces the engine’s overall mass, contributing to better vehicle handling and acceleration. The silver finish not only provides durability against corrosion but also adds a professional and clean look under the hood.

Installation is straightforward, making it accessible even for those with moderate mechanical skills. By improving air intake dynamics, this manifold supports higher RPMs and better torque distribution, which is essential for tuning enthusiasts looking to push their engines to the next level. Overall, the Skunk2 Racing 307-05-0260 is a smart investment for anyone seeking a balance between performance, reliability, and style in their Honda D-Series engine upgrade.

Wenjtp Intake Manifold Aluminum

WENJTP Intake Manifold Aluminum Compatible with Honda Civic Acura Del Sol Integra B Series VTEC Engines 1992-2001 Black

The WENJTP Intake Manifold Aluminum is ideal for automotive enthusiasts and mechanics who own or work on Honda Civic, Acura Del Sol, or Integra B Series VTEC engines from the years 1992-2001. If you are looking to enhance your engine’s performance with a reliable and durable intake manifold, this product is tailored for you. Its compatibility and build quality make it a smart upgrade for those focused on improving airflow and engine efficiency.

Pros:

  • Constructed from high-quality aluminum for durability and lightweight performance
  • Directly compatible with Honda Civic, Acura Del Sol, and Integra B Series VTEC engines (1992-2001)
  • Improves engine airflow, potentially increasing horsepower and torque
  • Corrosion-resistant black finish for long-lasting appearance and protection
  • Precision-engineered for easy installation and perfect fitment

Cons:

  • Limited compatibility restricted to specific Honda and Acura models
  • May require professional installation for optimal results
  • Higher price point compared to stock intake manifolds

The WENJTP Intake Manifold Aluminum features a robust design crafted to optimize the air intake process in your engine. Made from lightweight aluminum, it reduces unnecessary weight while maintaining excellent strength and heat dissipation properties. This results in improved engine efficiency and potentially better fuel economy. The black finish not only adds to the manifold’s aesthetics but also provides protection against corrosion, ensuring longevity even under demanding driving conditions.

Compatibility is a significant advantage of this intake manifold. Specifically designed for Honda Civic, Acura Del Sol, and Integra B Series VTEC engines from 1992 to 2001, it guarantees a perfect fit and seamless integration. By improving airflow with precise engineering, users can experience enhanced throttle response and increased power output. This makes the WENJTP Intake Manifold a valuable upgrade for those seeking both performance and reliability in their engine components.

92mm Intake Manifold With Fuel Rails & Throttle Body

92MM Intake Manifold with Fuel Rails & Throttle Body for 1997-2009 Chevrolet Pontiac Cadillac Saab for GMC LS LS1 LS2 LS6 LSX L99 L92 6.0L 5.7L 5.6L 5.3L 4.8L V8 with AN6 Fuel Crossover Line

The 92MM Intake Manifold with Fuel Rails & Throttle Body is ideal for automotive enthusiasts and mechanics looking to upgrade or replace parts on their 1997-2009 Chevrolet, Pontiac, Cadillac, Saab, or GMC vehicles equipped with LS series engines such as LS, LS1, LS2, LS6, LSX, L99, and L92. This product is perfect for those who want to enhance engine performance, improve fuel delivery, and ensure compatibility with multiple V8 engines ranging from 4.8L to 6.0L.

Pros:

  • Includes fuel rails and throttle body for a complete intake system upgrade
  • Compatible with a wide range of LS series engines and multiple GM vehicle brands
  • Features an AN6 fuel crossover line for efficient fuel delivery
  • Manufactured by SJDYYMX under the Generic brand, ensuring reliable construction
  • Designed to improve engine airflow and throttle response

Cons:

  • May require professional installation due to complex compatibility with various engine models
  • Generic brand may have limited warranty or support compared to OEM parts
  • Fitment might need minor adjustments depending on specific vehicle modifications

This 92MM Intake Manifold is engineered to optimize the air and fuel mixture entering the engine, which results in enhanced combustion efficiency. The inclusion of fuel rails and a throttle body ensures that fuel delivery is consistent and responsive, improving throttle control and overall engine performance. Its compatibility with a broad range of GM LS series engines makes it a versatile upgrade for various vehicle models, providing users with flexibility and convenience.

Additionally, the AN6 fuel crossover line integrated into this system supports smooth fuel flow between rails, minimizing pressure drops and ensuring stable fuel supply during high-performance driving. This helps maintain engine reliability while maximizing power output. Whether you’re upgrading for street performance or preparing for track use, this intake manifold setup offers a solid balance of quality, functionality, and compatibility for your V8 engine needs.

Jghyperx Dual Plane Mid-rise Intake Manifold Aluminum

JGhyperX 300-129 Dual Plane Mid-Rise Intake Manifold Aluminum Compatible with GM Chevy small block Gen III and IV LS3 LS92 364 376 V8 Engine

The JGhyperX 300-129 Dual Plane Mid-Rise Intake Manifold is an ideal choice for automotive enthusiasts and performance-driven individuals who own a GM Chevy small block Gen III and IV LS3 LS92 364 376 V8 Engine. This product is perfect for those looking to enhance their engine’s performance and achieve better throttle response and power output. If you’re someone who regularly participates in car shows, races, or simply loves to upgrade your vehicle, this manifold is tailored for you.

Pros:

  • Improved airflow for enhanced engine performance.
  • Durable aluminum construction ensures longevity and reliability.
  • Compatible with multiple engine models, offering versatility.
  • Mid-rise design for optimized power across various RPM ranges.

Cons:

  • Installation may require professional assistance for optimal results.
  • Heavier weight compared to some alternative materials.

The JGhyperX 300-129 Dual Plane Mid-Rise Intake Manifold features an advanced design that significantly improves airflow to your engine. This results in better combustion efficiency and ultimately enhances your vehicle’s horsepower and torque. The aluminum construction not only contributes to the manifold’s durability but also helps in dissipating heat effectively, ensuring your engine remains cool even under high-performance conditions.

With its mid-rise design, this manifold provides a balanced increase in power across a wide RPM range, making it suitable for both street and track use. The compatibility with various GM Chevy small block Gen III and IV LS3 LS92 364 376 V8 Engines means that it caters to a broad spectrum of vehicles, offering flexibility to car enthusiasts who own different models. While installation might require a bit of expertise, the performance benefits it brings make it a worthwhile investment for those serious about upgrading their engine’s capabilities.

Skunk2 Ultra Silver Race Intake Manifold

Skunk2 307-05-9200 Ultra Silver Race Intake Manifold (3.5 Liters) Honda D Series VTEC

The Skunk2 307-05-9200 Ultra Silver Race Intake Manifold is ideal for automotive enthusiasts and performance-focused Honda owners, particularly those with a 3.5 Liter Honda D Series VTEC engine. If you are looking to enhance your engine’s airflow and overall power output, this intake manifold is designed to meet the demands of high-performance street or track applications.

Pros:

  • Constructed by the reputable Skunk2 Racing brand ensuring quality and durability
  • Lightweight design at just 16.0 pounds for improved engine efficiency
  • Finished in Ultra Silver for an attractive and corrosion-resistant look
  • Optimized for Honda D Series VTEC engines, improving throttle response and horsepower

Cons:

  • Dimensions are unspecified, which may require verification for fitment
  • Installation may need professional assistance for those unfamiliar with intake manifold upgrades
  • Primarily suited for 3.5 Liter D Series engines, limiting compatibility with other engine types

The Skunk2 Ultra Silver Race Intake Manifold enhances engine breathing by optimizing airflow through its precision-engineered design. This results in a noticeable increase in power and throttle response, making it perfect for drivers who want to push their Honda D Series VTEC engines to the next level. The silver finish not only adds aesthetic appeal but also provides resistance against corrosion, contributing to the manifold’s longevity.

Additionally, the lightweight construction reduces overall engine weight, which can contribute to improved vehicle handling and fuel efficiency. Whether you are upgrading for racing or spirited street driving, this intake manifold offers a balance of performance and reliability that aligns with the needs of serious Honda performance enthusiasts.

Dart Bbc Intake Manifold

DART DRT41616010 BBC Intake Manifold - Gen-7 8.1L

The DART DRT41616010 BBC Intake Manifold - Gen-7 8.1L is ideal for automotive enthusiasts and professional mechanics looking to enhance the performance of their big block Chevrolet engines. If you are seeking improved airflow, increased horsepower, and a reliable upgrade for your 8.1L Gen-7 engine, this intake manifold is designed specifically to meet those needs.

Pros:

  • Manufactured by the trusted DART brand, ensuring high quality and durability.
  • Optimized design for superior airflow, boosting engine efficiency and power output.
  • Precision engineering tailored for the Gen-7 8.1L big block Chevrolet engine.
  • Enhances throttle response and overall engine performance.
  • Easy installation with direct fitment, reducing modification time.

Cons:

  • May be priced higher than standard intake manifolds due to specialized design.
  • Compatibility limited to Gen-7 8.1L engines, not suitable for other engine types.
  • Requires proper tuning to maximize benefits and avoid potential engine issues.

The DART DRT41616010 BBC Intake Manifold features a precision-machined construction that delivers exceptional airflow dynamics, making it an excellent choice for those aiming to extract more power from their 8.1L big block Chevrolet engine. Its design optimizes air distribution to each cylinder, which improves combustion efficiency and ultimately results in better horsepower and torque figures. This is particularly beneficial for high-performance builds where every bit of power counts.

Additionally, the intake manifold’s durable materials and expert craftsmanship from DART ensure long-lasting performance even under demanding conditions. This means users can expect reliable operation and reduced maintenance over time. By improving throttle response and fuel delivery, this component helps drivers experience a more responsive and exhilarating driving experience, making it a valuable upgrade for both street and track applications.

A-premium Engine Aluminum Single Plane Carb Mid-rise Intake Manifold

A-Premium Engine Aluminum Single Plane Carb Mid-Rise Intake Manifold Compatible with Chevy GM LS Gen III, IV LS3 L92 - Rectangular Port Cylinder Heads - 2500-7000 RPM, 5.42 inch HT, w/Seals & Bolts

The A-Premium Engine Aluminum Single Plane Carb Mid-Rise Intake Manifold is ideal for automotive enthusiasts and professional mechanics looking to enhance the performance of their Chevy GM LS Gen III and IV engines. Specifically designed for those using LS3 L92 rectangular port cylinder heads, this intake manifold is perfect for users who want to achieve improved airflow and power in the 2500-7000 RPM range. If you’re aiming to boost your engine’s efficiency and overall horsepower with a reliable and durable component, this product is a great choice.

Pros:

  • Constructed from lightweight and durable aluminum for long-lasting performance
  • Compatible with Chevy GM LS Gen III and IV engines including LS3 and L92
  • Optimized for 2500-7000 RPM to enhance mid-range power delivery
  • Includes seals and bolts for easy installation and a secure fit
  • Designed with a 5.42 inch height for a mid-rise profile that balances airflow and engine clearance

Cons:

  • May require tuning adjustments to maximize performance gains
  • Specific compatibility limits use to rectangular port cylinder heads only
  • Installation might be challenging for beginners without mechanical experience

The A-Premium Engine Aluminum Single Plane Carb Mid-Rise Intake Manifold offers a robust solution for those looking to upgrade their LS engine’s intake system. Its lightweight aluminum construction not only reduces overall engine weight but also provides excellent heat dissipation, helping maintain optimal engine temperatures during high-performance operation. The single plane design promotes better airflow at mid to high RPMs, ensuring that your engine breathes more efficiently and produces stronger power output where it counts most.

Additionally, this intake manifold’s compatibility with Chevy GM LS Gen III and IV engines, including the popular LS3 and L92 models, makes it a versatile upgrade for many LS enthusiasts. The inclusion of all necessary seals and bolts simplifies the installation process, allowing users to get their engines running with enhanced performance quickly. Whether you’re building a street performance car or a race-ready machine, this intake manifold delivers a balanced combination of power, durability, and ease of use.

Frequently Asked Questions

What Is The Best Intake Manifold For 9th Gen Civic Si?

The Skunk2 Racing Pro Series intake manifold is highly recommended. It offers improved airflow and horsepower for 9th Gen Civic Si engines. Its durable aluminum construction ensures long-lasting performance and better throttle response.

Can I Use A Fuel Injector Adapter With My 9th Gen Si Intake Manifold?

Yes, the WIKIBB R40 K24 fuel injector adapter is compatible. It fits 12+ Honda Civic Si 9th Gen models and ensures a proper fuel injector fit. This helps optimize fuel delivery and engine efficiency.

How Does The Skunk2 Racing Cold Air Intake Coupler Improve Performance?

The Skunk2 cold air intake coupler enhances air intake flow by reducing restrictions. It fits perfectly on the 9th Gen Civic Si intake manifold. This results in better throttle response and improved engine power.

Are There Intake Manifolds Compatible With Honda K20 And K24 Engines?

Yes, the Goodfind68 intake manifold coolant adapter plate fits Honda K20 and K24 engines. It improves cooling efficiency and is fully compatible with related intake systems. This helps maintain optimal engine temperatures during performance driving.

What Intake Manifold Suits Gm Ls Series V8 Engines?

The JGhyperX 300-129 dual plane mid-rise aluminum intake manifold is ideal. It fits GM Chevy small block Gen III and IV LS engines. This manifold improves torque and horsepower across a wide RPM range.

Is The Skunk2 Ultra Silver Race Intake Manifold Good For D Series Vtec?

Yes, the Skunk2 Ultra Silver Race Intake Manifold is designed for Honda D Series VTEC engines. It boosts airflow and power output. Its lightweight aluminum body ensures durability and racing-grade performance.

Conclusion

Choosing the best intake manifold for your 9th Gen Si can improve engine airflow and performance. Each option on the list offers unique features for different needs and budgets. From the WIKIBB adapter to Skunk2’s Pro Series, these parts are designed to fit well and boost efficiency.

Consider your driving style and goals when selecting the right manifold. Quality and compatibility matter most for lasting results. Upgrading your intake manifold can help your 9th Gen Si run smoother and stronger. Take time to compare specs and reviews before making a decision.

With the right choice, you can enjoy better throttle response and increased power. Remember, a good intake manifold is an important step in improving your car’s performance safely and reliably.


Herbert Langham

By Herbert Langham

ASE-Certified Master Technician & Garage Consultant based in Columbus, Ohio. Herbert helps drivers choose reliable automotive tools, accessories, and garage equipment through practical, experience-based advice.