Product Specifications
2012-2015 Honda Civic Si 2.4L Cold Air Intake Kit
The Flashark cold air intake kit for the 2012-2015 Honda Civic Si 2.4L replaces the factory intake assembly with a smooth black-coated aluminum tube and a washable, reusable red cone filter, letting the 2.4L four-cylinder pull in more and colder air. The payoff shows up where you can feel it: sharper throttle response, an expected 5-10% horsepower and 6-8% torque improvement, and a deeper, more aggressive induction note under acceleration. Installation is a direct bolt-on swap that most owners finish in under 60 minutes with common hand tools.
Specifications
| Brand | Flashark |
| Type | Cold Air Intake |
| Style | Cold Air Intake |
| Color | Black Coated Aluminum Pipe, Red Filter |
| Material | Aluminum Piping |
| Filter | Washable and Reusable |
| Package | 1 x Performance Cold Air Intake Kit |
Key Features
- High-Strength Aluminum Construction: The lightweight aluminum tubing is built for strength and durability, with a high-flow racing-performance-spec design that keeps intake air moving with fewer restrictions than the factory setup.
- More Cold Air, Sharper Response: Helping the engine draw in more and colder air translates into quicker throttle response and higher explosive horsepower output when you get on the gas.
- Up to 95% Filtration Efficiency: The red filter media delivers up to 95% filtration efficiency, so the cleaner airflow does not come at the cost of engine protection.
- Washable, Reusable Filter: The cone filter rinses clean and goes back on the tube instead of turning into a recurring replacement expense.
- Expected Power Gains: Approximately 5-10% horsepower and 6-8% torque improvement, along with improved gas mileage, with actual results depending on vehicle condition, ECU calibration, and supporting hardware.
- Sporty, Aggressive Sound: The intake adds a sporty, aggressive engine note for an enhanced driving experience, especially under hard acceleration.
- Under-60-Minute Install: This intake kit can be set up in under 60 minutes using common hand tools.
Who This Kit Is For
This Flashark cold air intake kit is built for 2012, 2013, 2014, and 2015 Honda Civic Si models with the 2.4L four-cylinder engine, and it also covers 2013-2015 Acura ILX 2.4L applications.
- For you if you want a sharper throttle response and a louder, more aggressive intake note from your Civic Si.
- For you if you prefer a washable, reusable filter over buying disposable filter cartridges.
- For you if you want a first bolt-on upgrade you can finish in under an hour with hand tools.
- For you if you drive a 2013-2015 Acura ILX 2.4L and want the same intake upgrade. Browse the full Honda Civic Cold Air Intake Kits range to compare related options.
This kit is not for you if your Civic is an LX, EX, DX, or HF with the 1.8L engine, or your ILX has the 2.0L engine or a hybrid powertrain, since those use different intake routing and mounting points. For a 1.8L 2012-2015 Civic, use the dedicated Cold Air Intake Kit for 2012-2015 Honda Civic DX/EX/LX/Touring/SE instead. This kit is also not for you if you need a CARB-legal part for street use in California or another CARB-adopting state, or if you expect a guaranteed MPG gain.
Check Before Ordering
- Vehicle fitment: This kit is made for the 2012-2015 Honda Civic Si 2.4L and the 2013-2015 Acura ILX 2.4L. Confirm the engine size and original intake layout before ordering, especially if the vehicle has been engine-swapped or previously modified.
- Intake system: The kit replaces the factory intake assembly with a black-coated aluminum intake pipe and a reusable performance filter. Verify that your car still uses the factory-style throttle-body position, sensor arrangement, and engine-bay layout before installation.
- Filter care: The cone filter is washable and reusable. Inspect it during regular maintenance and clean it whenever it looks dirty rather than on a fixed calendar schedule.
- Sensors and connections: Confirm the condition and routing of your factory sensor wiring and breather hoses before removing the stock intake. An air-flow-related code after installation usually traces back to a loose coupler, vacuum leak, or disconnected hose rather than the kit itself.
- Legality: This kit does not carry a CARB Executive Order number and is not legal for sale or use in California (and other CARB-adopting states). Check your state and local emissions rules before ordering.
- Installation and water: Budget under 60 minutes with common hand tools. Before starting the engine, confirm all clamps are tight and every hose and sensor is connected, and avoid deep standing water crossings at all times (hydrolock risk).
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1-2 business days and delivered within 7-9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
