Description
The Mishimoto Civic Si Performance Air Intake (MMAI-CIV-06SIWBK) is a wrinkle black, mandrel-bent aluminum cold air intake engineered specifically for the 2006–2011 Honda Civic Si and its K20Z3 engine. Dyno-proven to add up to 8 whp and 6 wtq over the restrictive factory airbox while running the stock ECU tune, this air intake system swaps out heavy, restrictive factory ducting for a free-flowing design without requiring bumper or splash guard removal.
Beyond the horsepower and torque gains, this cold air intake filter setup is built around a CNC-machined mass airflow sensor housing that keeps MAF readings accurate and consistent, translating into a smooth, predictable power band rather than a jumpy one. The included Mishimoto oiled air filter offers 85-percent greater surface area than the stock filter for optimal airflow and proper filtration, and it’s fully serviceable for long-term reuse. Drivers who install this intake filter also pick up an aggressive, rich intake tone that becomes especially pronounced when VTEC activates, making it a favorite upgrade for street driving and autocross alike. Whether you’re comparing options against other cold air intakes, cold air inductions kits, or a k&n cai, this Mishimoto air intake system is a straightforward, dyno-tested bolt-on that installs in under an hour.
Vehicle Applications
This Mishimoto Performance Air Intake is a direct fit for the 2006–2011 Honda Civic Si (chassis codes FG2 and FA5) equipped with the K20Z3 engine, and it also fits the 2008 Honda Civic MUGEN Si. It is not designed or sold for any other Civic generation, trim, or model year.
Features
- Direct-fit air intake system for the 2006–2011 Honda Civic Si and 2008 Honda Civic MUGEN Si
- Dyno-proven gains of up to 8 whp and 6 wtq over the stock intake while running the stock tune
- Mandrel-bent aluminum intake pipe finished in wrinkle black
- CNC-machined MAF housing for accurate, consistent mass airflow sensor readings
- High-flow, oiled multi-layered cotton air filter (part number MMAF-3006) with 2.75-inch filter diameter and red filter color
- Installs in less than one hour with no need to remove the front bumper or splash guard
- Includes silicone intake coupler, worm gear clamps, and all hardware needed for installation
- Aggressive, rich intake tone under acceleration, especially noticeable when VTEC engages
- Designed in Delaware, USA; filter made in USA
- CARB EO Number: D-759-1
- Backed by the Mishimoto Lifetime Warranty (filter re-oiling not covered under warranty)
Specifications
- Brand: Mishimoto
- Part Number: MMAI-CIV-06SIWBK
- Product Type: Air Intake System
- Pipe Material: Aluminum
- Pipe Finish: Wrinkle Black
- Hose Material: Aluminum
- Hose Color: Black
- Filter Material: Multi-layered cotton
- Filter Color: Red
- Filter Diameter: 2.75 inches
- Air Filter Part Number: MMAF-3006
- Grade Type: Performance
- Engine Code: K20Z3
- Chassis Codes: FG2, FA5
- CARB EO Number: D-759-1
Frequently Asked Questions
What vehicles does the Mishimoto MMAI-CIV-06SIWBK air intake fit?
This intake is a direct fit for the 2006–2011 Honda Civic Si (chassis codes FG2 and FA5) with the K20Z3 engine, and it also fits the 2008 Honda Civic MUGEN Si.
How much power does this cold air intake add?
Mishimoto’s dyno testing shows gains of up to 8 whp and 6 wtq over the stock intake while running the stock ECU tune.
How long does installation take?
Installation takes less than one hour and does not require removing the front bumper or splash guard.
What filter comes with this intake, and can it be reused?
It includes a Mishimoto high-flow, oiled multi-layered cotton air filter (part number MMAF-3006) with a 2.75-inch diameter. The filter is fully serviceable, though Mishimoto’s Lifetime Warranty does not cover filter re-oiling.
Does this intake include a CARB EO number?
Yes, this intake carries CARB EO Number D-759-1.
What is included in the kit?
The kit includes an aluminum intake pipe with a CNC-machined MAF flange, a silicone intake coupler, a high-flow oiled filter, worm gear clamps, and installation hardware, backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
