Description
The Mishimoto Civic Si Performance Air Intake (MMAI-CIV-06SIHWBK) is a wrinkle-black, mandrel-bent aluminum cold air intake system engineered specifically for the 2006–2011 Honda Civic Si. This dyno-proven air intake replaces the restrictive factory airbox and delivers up to 8 whp and 6 wtq over stock while maintaining safe air/fuel ratios on the stock tune. Designed in Delaware, USA, this wrinkle black pipe with heat shield installs in under an hour and comes backed by the Mishimoto Lifetime Warranty.
Built as a complete air intake system rather than a simple filter swap, this Mishimoto cold air intake combines a CNC-machined mass airflow sensor housing for accurate, consistent MAF readings with a free-flowing, oiled air filter that offers 85-percent greater surface area than the stock filter for optimal airflow and filtration. A powder-coated heat shield with protective edging sits between the air filter and the hot exhaust manifold to significantly reduce heat-soak, keeping intake air temperatures down for a smooth power band. Beyond the horsepower and torque gains, this air intake filter setup produces an aggressive, rich intake tone that becomes especially noticeable once VTEC activates, giving your Civic Si extra punch on the street or at the autocross course.
Vehicle Applications
This Mishimoto Performance Air Intake is a direct-fit cold air intake for the 2006–2011 Honda Civic Si, including the 2008 Honda Civic MUGEN Si. It is engineered around the K20Z3 engine code and fits the FG2 and FA5 chassis codes, with installation requiring no removal of the front bumper or splash guard.
Features
- Direct fit for 2006–2011 Honda Civic Si
- Dyno-proven gains of up to 8 whp and 6 wtq over the stock intake on the stock tune
- Mandrel-bent aluminum intake pipe in a wrinkle black finish
- CNC-machined mass airflow sensor (MAF) housing for accurate, consistent readings
- Powder-coated heat shield with protective edging reduces heat-soak between the filter and exhaust manifold
- High-flow, oiled multi-layered cotton air filter with 85-percent greater surface area than stock
- Fully serviceable air filter for a lifetime of reliable use
- Includes silicone intake coupler, worm gear clamps, and all hardware needed for installation
- Installs in less than one hour with no need to remove the front bumper or splash guard
- Aggressive, rich intake tone, especially noticeable when VTEC activates
- Designed in Delaware, USA, with a filter made in USA
- CARB EO Number: D-759-1
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMAI-CIV-06SIHWBK
- Finish: Wrinkle Black
- Hose Material: Aluminum
- Hose Color: Black
- Filter Material: Multi-layered cotton
- Filter Color: Red
- Filter Diameter: 2.75 inches
- Grade Type: Performance
- Air Filter Part Number: MMAF-3006
- CARB EO Number: D-759-1
- Engine Code: K20Z3
- Chassis Codes: FG2, FA5
- Includes: Aluminum intake pipe with CNC MAF flange, silicone intake coupler, high-flow oiled filter, heat shield with protective edging, 60-80mm worm gear clamps (x2), 16-25mm worm gear clamp hardware, Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles does this Mishimoto air intake fit?
This air intake is a direct fit for the 2006–2011 Honda Civic Si and the 2008 Honda Civic MUGEN Si, and is engineered around the K20Z3 engine on the FG2 and FA5 chassis codes.
How much power does this intake add?
Mishimoto’s dyno testing shows gains of up to 8 whp and 6 wtq over the stock intake while running the stock tune.
Do I need to retune my ECU after installing this intake?
Mishimoto recommends not using this intake with the stock ECU programming and highly recommends retuning the vehicle’s ECU after installation; power gains will vary depending on the type of ECU tune applied.
How often should I service the air filter?
Mishimoto recommends cleaning and re-oiling the oiled air filter every 10,000–15,000 miles during normal driving, and inspecting it more often if you frequently drive in dusty or off-road conditions. Filter re-oiling is not included in the Lifetime Warranty.
What does the kit include?
The kit includes an aluminum intake pipe with a CNC MAF flange, a silicone intake coupler, a high-flow oiled filter, a heat shield with protective edging, two 60-80mm worm gear clamps, one 16-25mm worm gear clamp, and all hardware needed, plus the Mishimoto Lifetime Warranty.
How long does installation take?
Installation takes less than one hour and does not require removal of the front bumper or splash guard.
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.
