Upgrading the intake manifold on your 9th Generation Honda Civic Si is a proven method to enhance engine performance, increase horsepower, and improve throttle response. Selecting the best intake manifold for your 9th Gen Si involves considering factors such as compatibility, material quality, and the specific performance gains you aim to achieve.
1. RBC Intake Manifold
The RBC intake manifold, originally designed for the 8th Gen Civic Si, has become a popular upgrade for the 9th Gen models. Its design promotes better airflow, leading to noticeable gains in horsepower and torque. Installation requires a conversion kit to ensure proper fitment.
Key Features:
- Improved Airflow: Enhances engine breathing for better performance.
- Compatibility: Requires a conversion kit for installation on 9th Gen models.
- Cost-Effective: Offers significant gains at a reasonable price point.
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2. Skunk2 Ultra Series Intake Manifold
The Skunk2 Ultra Series Intake Manifold is engineered for high-performance applications, offering substantial improvements in airflow and power output. It’s constructed from high-grade aluminum and features a large plenum and short runners, ideal for high-revving engines.
Key Features:
- High-Flow Design: Large plenum and optimized runners for maximum airflow.
- Durable Construction: Made from high-quality aluminum for longevity.
- Performance Gains: Suitable for both naturally aspirated and forced induction setups.
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3. P2R Ported Intake Manifold
P2R offers a ported version of the stock intake manifold, which enhances airflow without the need for extensive modifications. This option is ideal for those seeking incremental gains while maintaining OEM reliability.
Key Features:
- Enhanced Airflow: Porting increases the manifold’s efficiency.
- OEM Compatibility: Direct fitment with the stock setup.
- Cost-Effective Upgrade: Provides performance improvements without significant expense.
4. Skunk2 Pro Series Intake Manifold
The Skunk2 Pro Series Intake Manifold is designed for street and race applications, offering a balance between performance and daily drivability. Its design improves mid to high-range power, making it a versatile choice for various driving conditions.
Key Features:
- Optimized Runners: Designed to enhance mid to high-RPM performance.
- Quality Construction: Built from durable materials for long-lasting use.
- Versatile Application: Suitable for both street and track use.
5. K-Tuned RBC Intake Manifold Kit
K-Tuned offers a comprehensive kit that includes the RBC intake manifold along with necessary components for installation on the 9th Gen Civic Si. This kit simplifies the upgrade process and ensures compatibility.
Key Features:
- Complete Kit: Includes manifold, gaskets, and hardware for installation.
- Improved Performance: Enhances airflow leading to power gains.
- Ease of Installation: Designed for straightforward installation on 9th Gen models.
FAQ
1. What are the benefits of upgrading the intake manifold on a 9th Gen Civic Si?
Upgrading the intake manifold can improve airflow to the engine, resulting in increased horsepower, better throttle response, and enhanced overall performance.
2. Is a tune required after installing an aftermarket intake manifold?
Yes, to maximize the performance gains and ensure the engine runs efficiently, it’s recommended to have the vehicle tuned after installing an aftermarket intake manifold.
3. Can I install an 8th Gen Civic Si intake manifold on my 9th Gen model?
Yes, with the appropriate conversion kit, such as the one offered by P2R, you can install an 8th Gen intake manifold on a 9th Gen Civic Si.
4. How does the Skunk2 Ultra Series Intake Manifold differ from the Pro Series?
The Ultra Series is designed for maximum airflow and is suited for high-performance applications, while the Pro Series offers a balance between performance and daily drivability.
5. Are there any downsides to upgrading the intake manifold?
Potential downsides include the need for tuning, possible compatibility issues without proper kits, and the cost associated with purchasing and installing the new manifold.
Selecting the best intake manifold for your 9th Gen Civic Si depends on your performance goals and budget. Options like the RBC intake manifold and Skunk2 offerings provide significant gains, especially when paired with proper tuning and supporting modifications.
