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Air and Fuel Air Cleaners, Filters, Intakes and Components

Mishimoto

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

$392.00 $355.95 Save $36.05

SKU: M00C MMAI-STI-08P

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Special Order
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INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: MMAI-STI-08P

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:

  • 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

Performance Cold-Air Intake fits Subaru WRX/STI 2008-2014

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Mishimoto Subaru WRX/STI Performance Air Intake is engineered to replace the restrictive factory airbox, providing quick horsepower gains. This dyno-proven air intake offers 25 hp/25 tq gains over the OEM intake at 5300 rpm while maintaining safe air/fuel ratios. It's designed for direct fitment and can be installed in under one hour without requiring a custom tune. The kit includes a mandrel-bent aluminum intake pipe (available in polished aluminum), a Mishimoto air straightener, and a CNC-machined mass airflow sensor (MAF) housing for accurate MAF readings and a smooth power band. To reduce air intake temperatures (IATs), the air filter is placed outside the hot engine bay, and a powder-coated heat shield prevents heat-soak. The free-flowing, oiled air filter provides a 16% greater surface area for optimal airflow and proper filtration and is fully serviceable for a lifetime of reliable use. The kit also includes a silicone coupler, clamps, and all other necessary hardware. It provides an aggressive and rich intake tone and is made in the USA, backed by the Mishimoto Lifetime Warranty.

Fitment

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Specifications

BrandMishimoto
Part NumberM00C MMAI-STI-08P

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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