Product Details
Fitment
FAQ
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2006–2011 Honda Civic 1.8L Cold Air Intake Kit — DX / LX / EX / EX-L / GX
The Flashark cold air intake kit is built for owners of 2006–2011 Honda Civic DX, LX, EX, EX-L, and GX models with the 1.8L SOHC four-cylinder who want a real airflow upgrade over the restrictive factory airbox. The kit replaces the stock airbox and intake snorkel with a smooth 3-inch (76 mm) aluminum intake pipe and a high-flow cotton gauze cone filter, opening up a noticeably easier-breathing path to the throttle body. Whether you commute, run a weekend build, or want more induction sound under acceleration, this kit is engineered as a direct bolt-on replacement that retains the factory MAF sensor location and fits both 2-door coupe and 4-door sedan body styles. The long ram and short ram intake configurations are described in the FAQ so you can pick the right version for your climate and driving.
Specifications
| Item | Detail |
|---|---|
| Intake Pipe Diameter | 3 in (76 mm) — product-page intake size |
| Intake Pipe Material | Mandrel-bent aluminum with powder-coated black finish |
| Filter Type | High-flow cotton gauze cone, washable and reusable |
| Filter Size | 120–130 mm element, 76 mm inlet |
| Inlet Pipe | Φ63 silicone coupler section |
| Silicone Couplers Included | Φ63 × 1, Φ76 × 1 |
| Stainless Hose Clamps | 2× 59–82 mm, 2× 52–76 mm |
| Reinforced Boost Hose | D16-d10 × 410 mm × 1 |
| Mounting Hardware | Mounting brackets × 2, flange × 1, M6 anti-vibration mounts × 2, washers × 4, M6 lock nuts × 4 |
| MAF Sensor Compatibility | Reuses the factory MAF sensor at the OEM location and bore — no spacer or adapter required |
| Install Time (typical) | About 90 minutes with basic hand tools; no cutting, welding, or fabrication required |
| SKU | FLIS25015 (Long Ram) / FLIS25051 (Short Ram) |
| Available SKUs / Price | FLIS25015 — $118.00 · FLIS25051 — $106.00 |
Key Features
- 3-inch (76 mm) large-bore aluminum intake pipe: replaces the restrictive factory airbox and snorkel with a smooth mandrel-bent aluminum pipe sized to deliver less restrictive airflow to the 1.8L SOHC engine.
- Cold-air routing: intake pipe routes to a cooler zone in the engine bay so the filter sees denser, cooler charge air — a key difference versus the factory warm-airbox path.
- High-flow washable cotton gauze cone filter: 120–130 mm element with a 76 mm inlet; reusable for the life of the vehicle instead of disposable OEM paper filters.
- Full hardware kit in the box: Φ63 + Φ76 silicone couplers, four stainless hose clamps (2× 59–82 mm, 2× 52–76 mm), reinforced boost hose (D16-d10 × 410 mm), mounting brackets, flange, M6 anti-vibration mounts, washers, and lock nuts.
- Retains factory MAF sensor location and bore: uses the OEM mass airflow sensor at the stock position — no spacer, adapter, or recalibration hardware required.
- Powder-coated black aluminum finish: matte-black powder coating on the aluminum pipe resists heat and corrosion and looks clean in any 8th-gen Civic engine bay.
- Direct bolt-on fit, 2-door and 4-door compatible: vehicle-specific brackets and flanges for both coupe and sedan applications of the 2006–2011 Civic 1.8L SOHC — no cutting, welding, or fabrication.
Who this is for
This Flashark cold air intake replaces the factory airbox and intake snorkel on 2006–2011 Honda Civic DX, LX, EX, EX-L, and GX models powered by the 1.8L SOHC four-cylinder. It's for owners who want a deeper intake tone under acceleration, a washable filter they can clean and reuse, and a bolt-on install in roughly 90 minutes with basic hand tools — without touching the factory MAF sensor.
✓ For you if… you drive a 2006–2011 Civic 1.8L SOHC in DX/LX/EX/EX-L/GX trim and want a noticeable throttle and induction upgrade · you'd rather clean and reuse a cotton filter than keep buying disposable OEM paper filters · you prefer a direct bolt-on install that keeps factory sensors and connections intact · you want both 2-door coupe and 4-door sedan coverage.
✗ Not for you if… you have a Civic Si (2.0L DOHC i-VTEC) or Civic Hybrid — this kit does not fit those powertrains · you need a CARB EO–legal kit (see Compliance Notice below) · you expect a guaranteed MPG gain · you plan to ford deep standing water with the long ram configuration without relocating the filter (see hydrolock note).
Browse related Honda cold air intake kits: Honda Cold Air Intake Kits · Honda Civic Cold Air Intake Kits. If you're shopping for a different generation, the seventh-gen Civic intake kit (1992–2000, including the 1995 Civic EX) is a separate SKU — see the Honda Civic cold air intake collection for the full lineup.
Check before ordering
① Vehicle: fits exact-fit to 2006–2011 Honda Civic DX, LX, EX, EX-L, and GX with the 1.8L SOHC four-cylinder (8th gen). Civic Si (2.0L DOHC i-VTEC) and Civic Hybrid are not compatible — different engine and intake layout. Both 2-door coupe and 4-door sedan body styles are supported.
② Configuration: this listing is for the open-element cold air intake kit with a long ram or short ram intake pipe. Pick the version that matches your engine bay and climate before adding to cart — see the FAQ below for the long ram vs short ram difference.
③ Filter care: the included cotton gauze cone filter is washable and reusable. Inspect it at every oil change, clean when dirt begins building up in the pleats, let it dry fully, and apply light filter oil — over-oiling can contaminate the MAF sensor.
④ Sensors: the kit is designed to retain the OEM MAF sensor at the factory location and bore; no spacer or adapter is needed. Reuse your stock MAF sensor when you swap the airbox.
⑤ Compliance: this intake kit is not legal for sale or use in California and other CARB-adopting states. See the Compliance Notice below before ordering if you live in CA, CO, CT, DE, ME, MD, MA, NJ, NM, NY, OR, PA, RI, VT, VA, or WA, or a tribal/regional jurisdiction that follows CARB standards.
⑥ Install & environment: bolt-on, about 90 minutes with basic hand tools. No cutting, welding, or fabrication. The long ram configuration places the filter lower in the engine bay; avoid deep standing water — water ingestion can cause hydrolock and severe engine damage.
What's in the box
- Intake Pipe 1 (Φ76, long curve) × 1
- Intake Pipe 2 (Φ76, short curve) × 1
- Inlet Pipe (Φ63) × 1
- Mounting Bracket × 2
- Flange × 1
- High-Flow Red Cone Air Filter (Φ76 inlet) × 1
- Silicone Coupler Φ63 × 1
- Silicone Coupler Φ76 × 1
- Reinforced Boost Hose D16-d10 × 410 mm × 1
- Stainless Hose Clamp 59-82 mm × 2
- Stainless Hose Clamp 52-76 mm × 2
- M6 Anti-Vibration Mount × 2
- Washer × 4
- M6 Lock Nut × 4
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.
| Year | Make | Model | Trim | Engine |
|---|---|---|---|---|
| 2006–2011 | Honda | Civic | DX | 1.8L SOHC 4-Cyl |
| 2006–2011 | Honda | Civic | LX | 1.8L SOHC 4-Cyl |
| 2006–2011 | Honda | Civic | EX | 1.8L SOHC 4-Cyl |
| 2006–2011 | Honda | Civic | EX-L | 1.8L SOHC 4-Cyl |
| 2006–2011 | Honda | Civic | GX | 1.8L SOHC 4-Cyl |
⚠️ Note: Fits both 2-door coupe and 4-door sedan body styles. Does NOT fit Honda Civic Si (2.0L DOHC i-VTEC) or Civic Hybrid models.
2006–2011 Honda Civic 1.8L Cold Air Intake FAQs
Q1: Is this cold air intake legal in my state?
A1: Not legal for sale or use in California (and other CARB-adopting states). If you live in CA, CO, CT, DE, ME, MD, MA, NJ, NM, NY, OR, PA, RI, VT, VA, or WA, this kit cannot be installed on a vehicle registered for street or highway use unless an ECC retrofit is completed under CVC §27156.
Q2: Which Honda Civic models does this cold air intake kit fit?
A2: This 2006–2011 Honda Civic 1.8L cold air intake kit fits the DX, LX, EX, EX-L, and GX trims powered by the 1.8L SOHC four-cylinder engine. It covers both 2-door coupe and 4-door sedan body styles. Civic Si (2.0L DOHC i-VTEC) and Civic Hybrid models use a different engine and intake layout and are not compatible.
Q3: Does this fit a 2006 Honda Civic?
A3: Yes. The kit fits 2006 Honda Civic DX, LX, EX, EX-L, and GX models with the 1.8L SOHC engine — including the 2006 Civic LX sedan that the 2006–2011 fitment range is built around. Civic Si and Civic Hybrid are excluded.
Q4: Will this cold air intake fit a 2007 or 2008 Honda Civic?
A4: Yes. The fitment covers 2007 and 2008 Honda Civic coupe and sedan models with the 1.8L SOHC engine in DX, LX, EX, EX-L, and GX trims. Civic Si and Civic Hybrid are not compatible — they use a different engine and intake routing.
Q5: Does this intake fit a 2009, 2010, or 2011 Honda Civic?
A5: Yes. The fitment runs through the 2011 model year for the same DX / LX / EX / EX-L / GX trims with the 1.8L SOHC engine. Civic Si (2.0L DOHC i-VTEC) and Civic Hybrid are excluded.
Q6: Does this kit fit a 1995 or earlier Honda Civic EX?
A6: No. The 1992–1995 Civic EX (EG chassis) and 1996–2000 Civic EX (EK chassis) are seventh-generation Civics with different engines, intake manifolds, and engine-bay layouts. This kit is engineered specifically for the eighth-generation 2006–2011 Civic 1.8L SOHC. Owners of a 1995 Civic EX should look for the seventh-gen Civic intake kit instead — see our 2001–2005 Honda Civic cold air intake kit for the closest in-line Civic platform, or browse the Honda Civic cold air intake collection for the EG/EK chassis kits.
Q7: What is the difference between the long ram and short ram intake options?
A7: The long ram intake routes the filter farther from the hottest area of the engine bay, helping it access cooler charge air. The short ram intake uses a shorter intake path and keeps the filter higher in the engine bay, which can simplify installation and reduce exposure to road water. Both versions produce a more noticeable induction sound; the long ram prioritizes cooler inlet air, while the short ram may suit daily drivers concerned about wet-road conditions.
Q8: What size is the intake pipe?
A8: The kit uses a 3-inch (76 mm) large-bore aluminum intake pipe with a powder-coated black finish. Its smooth, larger-diameter design replaces the factory plastic intake routing and supports less restrictive airflow to the 1.8L SOHC engine.
Q9: How much horsepower will this add?
A9: Typical intake-only gains for a stock 1.8L SOHC Civic are approximately in the +3 to +10 hp / +3 to +10 lb-ft range. Actual results depend on the vehicle condition, supporting hardware, ambient temperature, and ECU calibration. Expect the most noticeable change as stronger induction sound and crisper throttle response rather than a dramatic standalone horsepower figure.
Q10: Will it throw a check engine light (CEL)?
A10: This kit is engineered to keep the OEM MAF sensor at the factory location and bore, which keeps the MAF calibration within the OEM design envelope. CELs are usually the result of an intake leak, an over-oiled filter, or a loose vacuum line. Re-check every clamp and coupler before starting the engine. For a deeper walk-through of post-install rough idle and CEL causes, see our rough idle after cold air intake installation guide, and for charge-air temperature and heat-soak diagnostics, see our heat-soak intake air temperature test guide.
Q11: Will this void my warranty?
A11: Under the Magnuson-Moss Warranty Act, an aftermarket part cannot void your factory warranty unless it is proven to have caused the failure. This kit is designed as a direct bolt-on replacement that keeps factory sensors and connections.
Q12: Can the long ram intake cause hydrolock in heavy rain?
A12: Normal rain driving is fine — the filter pulls from a defined position in the engine bay. Avoid deep standing water and flooded roads; water ingestion can cause hydrolock and severe engine damage. Keep the factory splash shields and fender liner installed and consider the short ram version if you regularly operate in flood-prone conditions.
Q13: How do I clean and re-oil the filter, and how difficult is the installation?
A13: Inspect the cotton gauze cone filter at each oil change and clean when dirt begins building up in the pleats. Let it dry completely before reinstalling and apply filter oil lightly and evenly — over-oiling can coat the MAF sensor. The kit is designed as a direct bolt-on upgrade; installation can generally be completed with basic hand tools in about 90 minutes. The long ram version may require more access around the bumper, fender liner, or lower engine-bay area. Everything in the box is covered below — the intake pipes, couplers, clamps, bracket, flange, reinforced boost hose, mounting hardware, and the washable cotton filter. The MAF sensor is reused from your stock airbox.
Fast Shipping Policy
Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 30-day free return, provided the item is brand new, uninstalled, and in its original packaging. We cover return shipping for quality issues. Refunds are processed within 3-5 business days. Click for Return Policy
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