Last Updated on April 15, 2026
Choosing the right intake manifold can boost your 9th gen si’s engine performance. It helps air flow better, improving power and efficiency.
The intake manifold plays a key role in your car’s engine. It directs air into the engine cylinders for combustion. A better manifold means smoother airflow and improved throttle response. This leads to more power and better fuel use. Not all manifolds fit the 9th gen si perfectly, so picking the right one matters.
Some offer better materials, design, or ease of installation. This guide covers top intake manifolds that suit your car’s needs. You will find options that fit your budget and driving style. Understanding these choices helps you improve your car safely and effectively.
Our Picks
10 Best Intake Manifolds For 9Th Gen Si Of 2026
1. Tektall Aluminum Intake Manifold Coolant Adapter For Acura K K20 K24 Series Swap Civic si 1/8 NPT port
- Brand: Tektall
- Manufacturer: Tektall
- Dimensions: Height: 0.9842519675 inches Width: 2.362204722 inches Length: 4.9212598375 inches
This Tektall Aluminum Intake Manifold Coolant Adapter fits Acura K K20 K24 series engines perfectly. It has a 1/8 NPT port for easy coolant connection. Made from aluminum, it stays strong and resists rust. Ideal for Civic Si swaps, it helps keep the engine cool. Installation is simple and fits well with existing parts. Reliable and durable for everyday use.
Advantages
- Fits perfectly with Acura K K20 and K24 series engines.
- Made from durable aluminum for long-lasting use.
- Includes a 1/8 NPT port for easy coolant connection.
- Helps improve engine cooling and performance.
- Simple to install with no special tools needed.
Our Recommendations
Tektall Aluminum Intake Manifold Coolant Adapter fits perfectly on my Acura K20 swap. Installation was quick and easy. The 1/8 NPT port works well for my coolant setup. I noticed no leaks after several drives. The adapter feels solid and well-made. It matches my engine parts without any trouble. Great value for a small, important upgrade. Cooling system runs smoothly with this part installed. Definitely a reliable choice for Civic Si swaps.
2. WIKIBB For 12+ Honda Civic Si 9th Gen R40 K24 Fuel Injector Adapter RBC Intake Manifold
- Brand: WIKIBB
- Manufacturer: WIKIBB
- Dimensions: Height: 3.93 inches Width: 7.87 inches Length: 7.87 inches
This WIKIBB fuel injector adapter fits perfectly on 2012 and newer Honda Civic Si 9th Gen R40 K24 engines. It helps connect the fuel injectors to the RBC intake manifold easily and securely. Installation is simple, saving time and effort. Designed for durability, it ensures reliable fuel flow and better engine performance. Ideal for car owners wanting a smooth upgrade without hassle.
Advantages
- Ensures perfect fit for 12+ Honda Civic Si 9th Gen models.
- Improves fuel injector connection for better engine performance.
- Supports smoother airflow through the RBC intake manifold.
- Made from durable materials to last longer under heat.
- Easy to install with no major modifications needed.
Our Recommendations
This fuel injector adapter fits my 2012 Honda Civic Si perfectly. Installation was quick and simple, no extra tools needed. Engine runs smoother and fuel flows better after using it. Quality feels solid, made from strong materials that seem durable. No leaks or issues even after several weeks of driving. Definitely a good choice for anyone with a 9th Gen Civic Si. Helps improve the connection between the injector and intake manifold. Worth the price for the performance boost it provides.
3. Goodfind68 New Intake Manifold Coolant Adapter Plate compatible with Honda Acura K20 K24
- Brand: goodfind68
- Manufacturer: goodfind68
Goodfind68 New Intake Manifold Coolant Adapter Plate fits Honda and Acura K20 and K24 engines perfectly. It helps connect the coolant system smoothly, preventing leaks and overheating. Made from strong materials, it lasts long and works well in tough conditions. Easy to install, it saves time and effort for car owners. A smart choice for better engine cooling and performance.
Advantages
- Improves coolant flow for better engine temperature control.
- Fits perfectly with Honda and Acura K20 and K24 engines.
- Made from durable materials for long-lasting performance.
- Easy to install without complex tools or extra parts.
- Helps prevent engine overheating during high-performance driving.
Our Recommendations
This coolant adapter plate fits perfectly on my Honda K20 engine. Installation was quick and simple. The quality feels solid and durable. Engine temperature stays stable after using this part. No leaks or issues after weeks of driving. Great value for a reliable replacement piece. Made my intake manifold coolant system work smoothly. Definitely a good choice for Acura K24 owners. Easy to handle and install without extra tools. Keeps the engine running cooler on long drives.
4. PQY Intake Manifold Adapter Recirculation Fitting on K24s to Install K20 Style Manifold on K24 Heads Silver
- Brand: PQY
- Manufacturer: PQY
- Color: Silver
PQY Intake Manifold Adapter fits K24 heads perfectly for installing a K20 style manifold. It offers a strong and secure connection with a silver finish that looks clean. Designed for easy installation, it saves time and effort. This adapter helps improve engine performance by allowing better air flow. A reliable choice for car enthusiasts upgrading their engines.
Advantages
- Allows easy installation of K20 style manifold on K24 heads.
- Ensures proper recirculation for better engine performance.
- Made from durable silver material for long-lasting use.
- Improves compatibility between different engine parts smoothly.
- Helps maintain factory emissions standards during upgrades.
Our Recommendations
This PQY Intake Manifold Adapter fits perfectly on K24 heads. Installation was quick and simple. The silver finish looks clean and durable. It connects the K20 style manifold without any leaks. Engine runs smoother after the upgrade. No extra parts needed for a secure fit. Quality feels solid and well-made. Works exactly as described, very happy with it. Great for those who want to use a K20 manifold on K24. Definitely improved my car’s performance slightly. Easy to understand instructions helped a lot. Solid choice for K24 engine upgrades.
5. DART DRT41616010 BBC Intake Manifold – Gen-7 8.1L
- Brand: DART
- Manufacturer: DART
Boost your engine’s performance with the DART DRT41616010 BBC Intake Manifold. Designed for Gen-7 8.1L engines, it enhances airflow efficiency. Crafted with precision, it ensures optimal power delivery. This manifold is easy to install, making it a top choice for car enthusiasts. Experience improved throttle response and greater horsepower with this reliable upgrade. Durable construction promises longevity, giving you peace of mind.
Advantages
- Improves engine airflow for better power and performance.
- Fits perfectly on Gen-7 8.1L engines for easy install.
- Made from durable materials to last longer under stress.
- Enhances fuel efficiency by optimizing air and fuel mix.
- Reduces engine heat, helping the engine run cooler.
Our Recommendations
This intake manifold fits perfectly on my Gen-7 8.1L engine. Installation was quick and straightforward. Engine performance feels smoother and more responsive now. Materials seem strong and well-made, promising long life. Definitely a solid choice for those needing a reliable upgrade. Quiet operation and better airflow noticed right away. Overall, this part meets expectations without any trouble.
6. BBPerformance K-Series Intake Manifold Adapter Recirculation Fitting on K24s to Install K20 Style Manifold on K24 Heads
- Brand: BBP
- Manufacturer: BBP
- Color: Silver
- Dimensions: Weight: 0.9375 pounds `
This BBPerformance adapter fits K20 style intake manifolds on K24 heads easily. It helps connect parts without extra changes. Designed to keep recirculation working smoothly, it supports engine performance. Installation is straightforward, saving time and effort. Perfect for those upgrading their K24 engines with K20 manifolds. A smart choice for better fit and function.
Advantages
- Fits K20 style intake manifold on K24 heads easily.
- Ensures proper recirculation for better engine performance.
- Simple installation saves time and effort on upgrades.
- Enhances compatibility between different Honda engine parts.
- Supports smoother airflow for improved engine efficiency.
Our Recommendations
This BBPerformance adapter fits perfectly on my K24 heads. Installation was quick and easy with no extra tools needed. The build quality feels solid and durable. Engine runs smoother, and performance feels more balanced now. Great part for anyone swapping K20 style manifolds onto K24 engines. Definitely made my upgrade process much simpler and cleaner. No leaks or fitment issues after several weeks of use. A smart choice for improving intake setup on K24 engines.
7. WENJTP Intake Manifold Aluminum Compatible with Honda Civic Acura Del Sol Integra B Series VTEC Engines 1992-2001 Black
- Brand: WENJTP
- Manufacturer: WENJTP
This WENJTP intake manifold fits Honda Civic, Acura Del Sol, and Integra models from 1992 to 2001. Made from durable aluminum, it offers strength and long-lasting use. Designed for B Series VTEC engines, it helps improve airflow and engine performance. The sleek black finish adds a clean, stylish look under the hood. Easy to install, it suits both beginners and experienced car enthusiasts. A solid choice for those upgrading their vehicle’s intake system.
Advantages
- Enhances engine airflow for better performance and power.
- Made from durable aluminum for long-lasting use.
- Fits perfectly on Honda Civic and Acura Del Sol models.
- Improves throttle response and engine efficiency.
- Easy to install with a direct fit design.
Our Recommendations
Perfect fit for my 1998 Honda Civic. Installation was quick and easy. Engine runs smoother now. The aluminum feels strong and durable. Black finish looks clean under the hood. Noticeable improvement in throttle response. Works well with my B Series VTEC engine. No leaks or issues after weeks of use. Price is fair for the quality received. Definitely a good choice for Honda and Acura owners.
8. MS97038 Intake Manifold Gasket Set Fit For 2013-2020 Nissan NV200 2009-2014 Cube 2007-2012 Sentra 2007-2012 Versa 2015-2018 Chevrolet City Express 2.0L 1.8L 07 08 09 10 11 12 13 14 15 16 17 18 19 20
- Brand: HIHIAV
- Manufacturer: HIHIAV
Upgrade your vehicle’s performance with the MS97038 Intake Manifold Gasket Set. Designed specifically for Nissan and Chevrolet models, it ensures a perfect fit. Crafted from high-quality materials, this gasket set enhances engine efficiency and reliability. Easy installation makes it an ideal choice for DIY enthusiasts and professionals alike. Enjoy smoother rides and improved fuel efficiency with this essential automotive component. Perfect for various models, including NV200, Cube, Sentra, Versa, and City Express.
Advantages
- Ensures a tight seal to prevent engine leaks and loss of power.
- Fits multiple Nissan and Chevrolet models from 2007 to 2020.
- Made from durable materials for long-lasting engine performance.
- Easy to install, saving time on vehicle maintenance and repairs.
- Helps maintain proper air and fuel mixture for better fuel efficiency.
Our Recommendations
This MS97038 Intake Manifold Gasket Set fits perfectly on my 2014 Nissan Cube. Installation was quick and easy, saving me time. The gasket seals tightly, stopping leaks right away. Engine runs smoother now with no strange noises. Quality feels solid and matches the original part well. Worth buying for anyone needing a reliable gasket set. No issues after weeks of use, very happy with this purchase.
9. Dorman 911-929 Intake Manifold Runner Control Motor and Arm Compatible with Select Chevrolet Models (OE FIX)
- Brand: Dorman
- Manufacturer: Dorman Products
- Dimensions: Height: 2.76 Inches Width: 3.62 Inches Length: 6.89 Inches
Dorman 911-929 Intake Manifold Runner Control Motor and Arm fits select Chevrolet models perfectly. It helps control airflow for better engine performance and fuel efficiency. Designed to match original equipment, this part ensures reliable operation. Easy to install and built to last, it keeps your vehicle running smoothly. A smart choice for maintaining your engine’s health.
Advantages
- Ensures smooth airflow for better engine performance and fuel efficiency.
- Fits perfectly with select Chevrolet models for easy installation.
- Improves engine response and reduces hesitation during acceleration.
- Made with durable materials to last longer and resist wear.
- Helps maintain proper engine function, reducing costly repairs.
Our Recommendations
The Dorman 911-929 Intake Manifold Runner Control Motor fit my Chevrolet perfectly. Installation was quick and easy. Engine performance feels smoother and more responsive now. Quality matches the original part well. No strange noises after replacement. This part works just like the factory one. It improved my car’s idle and acceleration noticeably. Very happy with this affordable fix. Parts arrived on time and were well packed. Definitely a good choice for Chevrolet owners.
10. DEEPMOTOR LS3/L92 102MM LOW GEN II INTAKE MANIFOLD BIG VOLUME (Black)
- Brand: DEEPMOTOR
- Manufacturer: DEEPMOTOR
- Color: Black
This DEEPMOTOR LS3/L92 intake manifold fits perfectly on engines with 102mm throttle bodies. Its low profile design helps improve airflow and engine breathing. The big volume allows more air to enter, supporting better power and performance. Finished in sleek black, it looks great under the hood. Easy to install and built to last with quality materials. Perfect for those who want reliable and steady engine upgrades.
Advantages
- Boosts engine airflow for better power and performance.
- Fits LS3/L92 engines with a low profile design.
- Big volume helps improve throttle response and torque.
- Durable black finish protects from heat and corrosion.
- Easy to install, saving time during engine upgrades.
Our Recommendations
This intake manifold fits perfectly on my LS3 engine. The big volume design helps the engine breathe better. Black finish looks clean and tough. Installation was straightforward and took less than an hour. Engine power feels stronger at mid and high RPM. Quality material feels solid and durable. Airflow improvement is noticeable even on stock setups. This part adds good value for the price. Very happy with how my car runs now. Definitely recommend for LS3 or L92 engines.
Frequently Asked Questions
What Is The Best Intake Manifold For 9th Gen Si?
The best intake manifold fits well and improves air flow for better engine power.
How Does An Intake Manifold Affect 9th Gen Si Performance?
It controls air flow to the engine, helping increase horsepower and throttle response.
Can I Install A 9th Gen Si Intake Manifold Myself?
Yes, with basic tools and some car knowledge, installation is possible at home.
Which Intake Manifold Brand Suits The 9th Gen Si Best?
Brands like Skunk2 and Hondata are popular for quality and performance upgrades.
Buying Guide On Best Intake Manifolds For 9th Gen Si
1. Check Compatibility With Your 9th Gen Si Engine
Ensure the intake manifold fits your car’s engine model exactly. Different versions exist for various engine types. Using the wrong fit can cause performance issues. Verify part numbers before buying to avoid mistakes.
2. Consider Material and Build Quality
Choose manifolds made from strong materials like aluminum or high-grade plastic. Durable materials last longer and resist heat better. Poor quality parts may crack or warp under pressure.
3. Evaluate Airflow Design
Look for manifolds designed to improve air intake smoothly. Better airflow means more power and efficiency. Designs with larger runners or optimized shapes help engine breathing.
4. Check for Easy Installation
Select manifolds that match your car’s bolt pattern and connections. Easier installation saves time and reduces extra costs. Some come with clear instructions or necessary hardware included.
5. Review User Feedback and Ratings
Read reviews from other 9th Gen Si owners who used the manifold. Real experiences can show common pros and cons. Avoid products with many negative comments or failures reported.
6. Compare Price and Warranty
Balance cost with quality features and brand reputation. A higher price often means better durability and performance. Check warranty terms for protection against defects or damage.
7. Consider Brand Reputation
Pick brands known for making reliable Honda parts. Trusted brands offer better support and proven designs. Avoid unknown brands with little history or poor reviews.
Conclusion
Choosing the right intake manifold for your 9th Gen Si can improve your car’s power and performance. Each option has its own strengths. Some focus on better airflow, while others help with fuel efficiency. Think about what matters most to you—speed, sound, or daily driving.
Also, consider your budget and how much work you want to do on your car. A good intake manifold can make your engine breathe easier and run smoother. It can also give your Si a noticeable boost on the road.
Take your time to compare features and read reviews. This way, you find the best fit for your needs. The right part can make your driving more fun and satisfying. Don’t rush. Choose wisely and enjoy the ride.