Cold Air Intake Kit for 2006-2011 Honda Civic DX EX LX EX-L GX 1.8L SOHC 4-Door 2-Door

Give your 2006-2011 Honda Civic's 1.8L SOHC engine the airflow upgrade it deserves. The Flashark Cold Air Intake Kit replaces the restrictive factory airbox with a smooth, large-bore intake system designed to pull cooler, denser air into your engine — resulting in sharper throttle response, improved mid-range torque, and that satisfying intake sound every time you get on the throttle.

Built with a powder-coated aluminum intake pipe and a high-flow cone filter, this kit comes complete with all hardware for a true bolt-on installation. No cutting, no welding, no fabrication required — just basic hand tools and about 90 minutes of your time.

Compatible with 2-door and 4-door Honda Civic models from 2006 to 2011 with the 1.8L SOHC 4-cylinder engine.

Features

3" (76mm) Large-Bore Intake Pipe — significant upgrade over the restrictive factory airbox; maximizes airflow to the 1.8L SOHC engine

Cold Air Design — intake pipe routes to a cooler zone in the engine bay, delivering denser air for better combustion and more power

High-Flow Red Cone Air Filter — washable and reusable cotton gauze filter (120-130mm diameter, 76mm inlet); better airflow than paper OEM filters and lasts the life of your car

Reinforced Silicone Boost Hose Included — 16mm hose (D16-d10×410mm) for supplementary connections; ensures reliable fitment without leaks

Full Hardware Kit Included — 4× stainless steel hose clamps (2× 59-82mm, 2× 52-76mm), 2× silicone couplers (Φ63 + Φ76), M6 anti-vibration mounts, washers, and lock nuts — everything you need in the box

Powder-Coated Black Finish — durable matte-black coating on aluminum pipes resists heat and corrosion; looks clean in any engine bay

Direct Bolt-On Fit — vehicle-specific design with brackets and flanges for exact fitment; no modification needed

2-Door and 4-Door Compatible — fits all body styles of the 2006-2011 Civic 1.8L SOHC

Why Upgrade Your Intake?

The factory airbox on the 2006-2011 Honda Civic was designed to be quiet and cost-effective — not to maximize performance. It routes warm air from the engine bay through restrictive plastic tubing, which limits airflow and reduces the density of the air entering your engine.

The Flashark Cold Air Intake solves this by replacing the entire factory system with a larger-diameter pipe that pulls in cooler, denser air from a lower, cooler position in the engine bay. More air density means:

• More responsive throttle — feel it from the first press of the gas pedal
• Improved mid-range torque — stronger pull in the 3,000-6,000 RPM range
• Better fuel efficiency — more efficient combustion under light load
• Aggressive induction sound — that crisp intake note the factory system completely muffles
• Reusable filter — never buy a disposable OEM filter again

Whether you're driving the Civic daily or building it as a weekend car, a cold air intake is the best bang-for-buck bolt-on upgrade you can make to the 1.8L SOHC engine.