Cold Air Intake Kit for 2001-2005 Honda Civic DX/EX/LX/GX/HX/Si 1.7L 2.0L l4 Naturally Aspirated

Your 7th-gen Civic has two problems: a factory intake that chokes the 1.7L D17 or 2.0L K20 at high RPM, and a single-pipe aftermarket option that leaves you choosing between cold-air reach and throttle response. This Flashark kit solves both.

The dual-pipe design gives you two ways to run the intake — long-ram for true cold-air routing that draws from outside the engine bay, or short-ram for instant throttle response and easier maintenance access. Both configurations use the same mandrel-bent Φ63 mm aluminum tubes finished in matte black powder coat and the same high-flow red dry cotton gauze filter.

Everything bolts on with basic hand tools. No tune required for naturally aspirated 1.7L or 2.0L engines. Most owners finish the install in under an hour.

Key Features

• Dual-Pipe Aluminum Intake System — Two mandrel-bent Φ63 mm tubes in matte black powder coat. Run a long-ram for cold-air performance or a short-ram for instant response
• High-Flow Dry Cotton Gauze Filter — Red conical filter, top OD 120 mm / bottom OD 155 mm / 63 mm inlet. Washable, reusable, never needs oiling
• Configurable Long-Ram or Short-Ram Layout — Same kit, two setups. Long ram pulls cooler outside air; short ram places the filter in the engine bay for maximum airflow velocity
• Complete Hardware Kit — 2× straight rubber couplers (D63 × 64 mm), breather hose (D22-d15 × 163 mm), 4× stainless hose clamps, aluminum mounting bracket, M6 rubber vibration damper, washer, lock nut, and rubber grommets
• Bolt-On Installation — Uses factory mounting points on 2001–2005 Civic DX/EX/LX/GX/HX/Si chassis. No cutting, no welding, no permanent modification
• No Check Engine Light — Maintains correct MAF sensor positioning and factory breather hose routing on naturally aspirated 1.7L and 2.0L engines
• Massive Memorial Day Savings — $96.00vs\mathrm{.}$149.99 regular price. Free shipping on qualifying orders.

FAQ

Q: What is the difference between Long Ram and Short Ram?
A: Long Ram routes the filter outside the engine bay for cooler intake temperatures — ideal for highway driving and sustained high-RPM use. Short Ram keeps the filter inside the engine bay for maximum airflow velocity and quicker throttle response. This kit includes both tubes so you can switch configurations.

Q: Will this fit my 2003 Civic LX with the 1.7L automatic?
A: Yes. This kit is confirmed compatible with all 2001–2005 Civic DX/EX/LX/GX/HX automatic models with the D17 series engine. The bracket bolts to the factory mounting point behind the headlight.

Q: Does the Si (K20A3) version fit the hatchback?
A: Yes, the 2002–2005 Civic Si 3-door hatchback with the 2.0L K20A3 is supported. Use the long-ram configuration for best results.

Q: Do I need a tune after installing this intake?
A: No. On naturally aspirated D17 and K20A3 engines, the intake works safely with the factory ECU. Most owners report no CEL and immediate seat-of-the-pants gains.

Q: Is the filter oiled or dry?
A: Dry. The red conical filter is dry cotton gauze — no oiling required, ever. Clean it with mild soap and water when dirty.

Q: What tools do I need for installation?
A: 10 mm and 12 mm sockets, flat-head screwdriver, and pliers. Everything else is included in the kit.

• Enhanced Engine Sound – Enjoy a deeper, more aggressive intake growl as you accelerate.
  
• Durable & Easy to Install – Made from high-quality aluminum tubing and featuring a high-flow air filter, this kit is built to last and can be installed with basic hand tools.

2001-2005 Honda Civic Cold Air Intake Kit FAQ (DX / EX / LX / GX / HX / Si)

Q1: What vehicles does this 2001-2005 Honda Civic cold air intake kit fit?

A1: This cold air intake kit is designed for 2001-2005 Honda Civic DX, EX, LX, GX, HX, and Si models. However, exact compatibility depends on engine type, so always confirm your engine (D17 or K-series for Si) before purchasing.

Q2: Does this intake fit a 2001 Honda Civic?

A2: Yes, it fits 2001 Honda Civic DX, EX, LX, GX, and HX models equipped with compatible engines. It is a common upgrade for improving airflow and throttle response on seventh-generation Civics.

Q3: Will this cold air intake fit a 2005 Honda Civic?

A3: Yes, it fits 2005 Honda Civic models within the DX, EX, LX, GX, and HX trims that use the compatible D-series engines. Always confirm engine code before ordering.

Q4: Does this intake fit Honda Civic Si (2002-2005)?

A4: The Civic Si in this generation uses a different 2.0L K-series engine (K20A3), so compatibility depends on the specific kit design. Many D-series intake kits do NOT fit Si models without modification.

Q5: What engines are supported by this intake?

A5: This kit typically supports D17A1, D17A2, D17A6, and D17A7 engines found in 2001-2005 Civic DX, EX, LX, GX, and HX models. Always verify your engine code before installation.

Q6: What is the difference between HX, GX, and EX Civic models for intake fitment?

A6: HX models use a lean-burn D17 engine focused on fuel economy, GX models use a CNG (natural gas) system, and EX models use standard gasoline D17 engines. Intake compatibility varies depending on sensor layout and fuel system configuration.

Q7: Will this cold air intake increase horsepower?

A7: Yes, but gains are modest. Most users see improved throttle response and a small horsepower increase (typically 5-10 HP depending on supporting mods and engine condition).

Q8: Will this intake improve fuel economy?

A8: Fuel economy improvements are not guaranteed. Some drivers may see slight MPG gains under light throttle driving, but results depend heavily on driving habits.

Q9: Does this intake make the Honda Civic louder?

A9: Yes, it increases intake and engine sound, especially during acceleration. The D-series engine produces a more aggressive induction tone compared to the stock airbox.

Q10: Do I need a tune after installing this intake?

A10: No ECU tune is required for basic installation. The factory ECU can adjust to increased airflow on most D17 engines.

Q11: Can this intake cause a check engine light?

A11: A properly installed intake should not trigger a check engine light. Issues usually occur if sensors or vacuum lines are not reconnected correctly.

Q12: Is this a cold air intake or short ram intake?

A12: Depending on configuration, it may function as a cold air intake or short ram intake. Cold air setups draw cooler outside air, while short ram designs prioritize simpler installation and faster throttle response.

Q13: Is the filter reusable and washable?

A13: Yes, the kit includes a reusable and washable high-flow cone filter designed for long-term performance use.

Q14: How difficult is installation?

A14: Installation is bolt-on and typically takes 30–60 minutes with basic hand tools. No cutting or drilling is required for most Civic D-series applications.

Q15: What is the main benefit of this intake upgrade?

A15: The main benefits include improved airflow, sharper throttle response, increased induction sound, and a more performance-oriented engine bay appearance for 2001-2005 Honda Civic models.