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Mishimoto Air Intake Kit - MMAI-STI-08P

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Performance Cold-Air Intake, Polished, fits Subaru WRX/STI 2008-2014
Manufacturer: Mishimoto
Manufacturer part number: MMAI-STI-08P
Old price: $392.00
$355.95
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Add some quick horsepower to your WRX or STI with the new Mishimoto Subaru WRX/STI Performance Air Intake. This kit is engineered specifically for your 2008+ Subaru WRX or STI and includes everything needed to replace the restrictive factory airbox. Our engineers spent months fine-tuning this design in an attempt to squeak out every last bit of performance. This dyno-proven air intake provides 25 hp/25 tq gains over the OEM intake while maintaining safe air/fuel ratios, perfect for some extra punch on the street or autocross course. The Mishimoto Subaru WRX/STI Performance Air Intake includes everything needed for installation, installs in under one hour, and works perfectly with the factory tune. The mandrel bent aluminum intake pipe is available with a red or black powder-coated finish or a polished aluminum finish. This pipe utilizes the Mishimoto air straightener and CNC-machined mass airflow sensor (MAF) housing to provide accurate and consistent MAF readings, which translates into a smooth power band. To reduce air intake temperatures (IATs), the air filter has been placed outside the hot engine bay, and a powder-coated heat shield prevents any heat-soak from occurring. The Mishimoto free-flowing air filter provides a 16-percent greater surface area, optimal airflow, and proper filtration of dirt and debris. The included Mishimoto oiled air filter is completely serviceable, allowing for a lifetime of reliable use. Additionally this kit includes a silicone coupler, clamps, and all other hardware necessary to complete a quick installation for easy bolt-on power. Along with an upgrade in power, this intake also provides an aggressive and rich intake tone that is a huge improvement over the factory intake. The Mishimoto Subaru WRX/STI Performance Air Intake is made in the USA and includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

Products specifications

Attribute name Attribute value
Color Aluminum
TechSpec Engine Codes EJ255--EJ257
TechSpec Applications 2008-2014 Subaru WRX--2008-2014 Subaru STI--2009-2013 Subaru Forester XT
TechSpec Note For the best performance from your Mishimoto intake, we recommend cleaning and re-oiling your oiled air filter every 10,000–15,000 miles during normal driving. If you frequently drive in dusty or off-road conditions, inspect the filter more often and service it whenever it appears dry or heavily coated with debris.----Filter re-oil is not included in Lifetime Warranty.
TechSpec Caution N/A
TechSpec Includes (1) Aluminum Intake Pipe--(1) High-Flow, Oiled Filter--(1) Heat Shield w/ Protective Edging--(1) Silicone Coupler--(1) Rubber Mounting Isolator--Hardware--Mishimoto Lifetime Warranty
SellingPoint01 Direct fit for the 2008-2014 Subaru WRX/STI
SellingPoint02 Dyno-proven gains of 25 hp/ 25 tq at 5300 rpm
SellingPoint03 Eliminates restrictions and improves airflow
SellingPoint04 Mandrel-bent aluminum intake pipe with air straightener and CNC-machined MAF housing
SellingPoint05 Powder-coated heat shield for optimal air temperatures
SellingPoint06 High-quality Mishimoto free-flowing air filter provides 16-percent greater filter surface area
SellingPoint07 True cold-air design with filter placement outside the engine bay
SellingPoint08 Fully serviceable oiled air filter
SellingPoint09 Provides an aggressive, rich intake tone
SellingPoint10 Bolt-on performance works with stock tune and installs in under one hour
SellingPoint11 Designed in Delaware, USA and filter made in USA
SellingPoint12 Mishimoto Lifetime Warranty
SellingPoint13 N/A
SellingPoint14 N/A
SellingPoint15 N/A
CARB EO Number D-759-3
Install Difficulty 2
OptionLabel Polished
Prop 65 Y/N Y
Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Finish Polished
Installation Difficulty 2
Material Aluminum
TechSpec Air Filter Part Number MMAF-2757
TechSpec Filter Diameter 2.75
TechSpec Chassis Codes GE--GH--GR
Filter Color Red
Grade Type Performance
Hose Color Polished
Hose Material Aluminum
Filter Material Multi-layered cotton
Country of Origin CN
Condition New
🚗 Compatible with
17 vehicles are compatible with this product · 2008–2014
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