Mishimoto 08+ Subaru WRX/STi Performance Cold Air Intake Kit - Polished

SKU: MISMMAI-STI-08P

Air Intake Kits

MM Air Intakes

Mishimoto

Mishimoto 08+ Subaru WRX/STi Performance Cold Air Intake Kit - Polished

SKU: MISMMAI-STI-08P

Air Intake Kits

MM Air Intakes

Sale ends in Calculating... Tue 13 Oct, 1:07 pm AEST

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

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% 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.

Product Overview

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.

Features and Benefits

Direct fit for the 2008-2014 Subaru WRX/STI
Dyno-proven gains of 25 hp/ 25 tq at 5300 rpm
Eliminates restrictions and improves airflow
Mandrel-bent aluminum intake pipe with air straightener and CNC-machined MAF housing
Powder-coated heat shield for optimal air temperatures
High-quality Mishimoto free-flowing air filter provides 16% greater filter surface area
True cold-air design with filter placement outside the engine bay
Fully serviceable oiled air filter
Provides an aggressive, rich intake tone
Bolt-on performance works with stock tune and installs in under one hour
Designed in Delaware, USA and filter made in USA
Mishimoto Lifetime Warranty

Product Details

Alternate Part Number:	MMAI-STI-08P
CARB EO Number:	D-759-3
Color:	Polished
Description:	Subaru WRX/STI Performance Cold-Air Intake
Finish:	Polished
Install Difficulty:	2
Installation Difficulty:	2
Material:	Aluminum
OptionLabel:	Polished
Part Number:	misMMAI-STI-08P
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	prop65_warning.jpg
Prop 65 Yes/No:	Yes
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
TechSpec Air Filter Part Number:	MMAF-2757
TechSpec Applications:	2008-2014 Subaru WRX--2008-2014 Subaru STI--2009-2013 Subaru Forester XT
TechSpec Caution:	N/A
TechSpec Chassis Codes:	GE--GH--GR
TechSpec Engine Codes:	EJ255--EJ257
TechSpec Filter Diameter:	2.75
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
TechSpec Note:	Filter re-oil is not included in Lifetime Warranty.
Title:	Mishimoto Subaru WRX/STI Performance Cold-Air Intake, Polished, 2008-2014

Application Summary

2009 Subaru Forester XT 2.5 Liter, 2009-2010 Subaru Forester XT Limited 2.5 Liter, 2010-2013 Subaru Forester XT Premium 2.5 Liter, 2011-2013 Subaru Forester XT Touring 2.5 Liter, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008 Subaru Impreza WRX 2.5 Liter TZ1B8, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2011-2014 Subaru Impreza WRX STI Limited 2.5 Liter TY856, 2010 Subaru Impreza WRX STI Special Edition 2.5 Liter TY856

Part Type

Air Intake Kit

Data: v4.2 - Upd: 2026-09-29 08:29:13

Features

Dyno-proven gains of 25 hp/ 25 tq at 5300 rpm
Eliminates restrictions and improves airflow
Mandrel-bent aluminum intake pipe with air straightener and CNC-machined MAF housing

Specifications

Product Attributes - UPC: 748354010954
Product Attributes - Brand: Mishimoto
Product Attributes - Notes: Black powdercoated steel heat shield.
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Emissions: California EO Approved
Product Attributes - Part Type: Air Intake Kits
Product Attributes - Tube Color: Polished
Product Attributes - Filter Color: Red
Product Attributes - Product Line: Mishimoto Performance Air Intakes
Product Attributes - Sleeve Color: Black
Product Attributes - Tube Material: Aluminum
Product Attributes - Air Filter Type: Oiled
Product Attributes - CARB EO Number(s): D-759-1
Product Attributes - Tube Diameter (in.): 2.750 in.
Product Attributes - Filter End Cap Color: Black
Product Attributes - Air Intake Filter Material: Cotton gauze
Product Attributes - Manufacturer's Part Number: MMAI-STI-08P

Reference Information

Brand Name/s	Mishimoto
StreetFX SKU	misMMAI-STI-08P
SFX Item ID	4050075
Supplier Item Code	4050075
Manufacturer SKU	MMAI-STI-08P
Manufacturer UPC	748354010954
Alternative References	mio-mmai-sti-08p, MIMMMAI-STI-08P