Cold Air Intake for Honda Civic Si (2006-2011) 2.0L L4 Engine

Maximize VTEC Induction for your 2006-2011 Honda Civic Si K20Z3

Who It’s For: Designed specifically for 8th Generation Honda Civic Si owners running the legendary K20Z3 engine. Whether you’re daily driving a FA5 sedan or carving corners in an FG2 coupe, this is for the driver who wants to hear the VTEC crossover and feel the engine breathe better at the top of the tachometer.

The Problem: The stock airbox on the K20Z3 is a maze of plastic resonators and restrictive baffles designed by the factory to prioritize silence over performance. This creates unnecessary turbulence and traps heat, which can lead to heat soak during spirited driving or summer commutes, ultimately stifling the 197-horsepower potential of your high-revving four-cylinder.

The Solution: This intake replaces that bulky factory assembly with a streamlined, mandrel-bent T304 aluminum pipe and a high-flow cone filter. By smoothing out the intake path, we’ve allowed the K-Series to draw in air more efficiently, resulting in sharper throttle response and that signature aggressive induction roar that every Honda enthusiast craves.

Why This is the Ultimate Upgrade

• Optimized Airflow: High-flow T304 lightweight aluminum piping reduces intake restriction, allowing for power gains of up to 10% in horsepower and torque across the powerband.
• Superior Filtration: The included washable, reusable performance filter provides exceptional protection against debris while maintaining high CFM levels; it only needs servicing every 50,000 miles.
• Bolt-On Simplicity: This is a true "Saturday Morning" project. It fits both manual and automatic models and installs in under 60 minutes using basic hand tools with no permanent modifications required.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2006 Honda Civic Si (2.0L L4 Engine)
• 2007 Honda Civic Si (2.0L L4 Engine)
• 2008 Honda Civic Si (2.0L L4 Engine)
• 2009 Honda Civic Si (2.0L L4 Engine)
• 2010 Honda Civic Si (2.0L L4 Engine)
• 2011 Honda Civic Si (2.0L L4 Engine)

Interchange Part Numbers:

2006, 2007, 2008, 2009, 2010, 2011, HONDA-CIVIC-SI-20L-INTAKE

The Performance Promise

Buy with confidence. As tuners, we know that the K-Series loves to breathe. This kit is designed to survive the heat of the engine bay while giving you the performance and sound your Si deserved from the factory. Backed by real automotive experts and fast shipping.