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For 18-21 Subaru WRX STI H4-2.5L Turbo SP Aluminum Series Injen Cold Air Intake

Injen SP Short Ram Air Intake System (Wrinkle Black) - SP1208WB
Fits 2018-2021 Subaru WRX STI H4-2.5L Turbo

Injen Technology has done it once again with this new short ram air intake for the 2018-2021 Subaru WRX STI Equipped with the H4-2.5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive factory airbox and provides a engineered solution that allows that turbo to breathe deeply and produce it’s full power potential with a simple drop-in install. To top it all off, no tune is required to get the power numbers noted!

The SP series of cold air intakes is Injen’s flagship system in their lines of traditional aluminum cold air intake systems. Injen Technology is the world’s first tuned air intake system and holds four (4) patents on the tuning process of an intake system, something no other manufacturer can claim. The SP series of cold air intakes feature many of Injen Technology’s patented tuning process, including MegaRam (MR) Technology (Patents 7,359,795 and 7,669,571), Air Fusion (Patent 7,721,669), and many other innovations that keep Injen Technology at the forefront in the performance aftermarket.

Key Features

Direct fit for:
2018-2021 Subaru WRX STI H4-2.5L Turbo

Dyno Proven Gains of up to 26 hp and 24 lb-ft. of torque

Short Ram Air Intake Design

Features Injen’s patented MegaRam (MR®) Technology

Injen’s MR Technology provides massive power gains while maintaining A/F ratios

No additional tuning required and no check engine lights

Huge 3.250in mandrel-bent 6061-T6 aluminum intake tubing

Includes custom heat shield specifically designed for this application

Fully serviceable Injen SuperNano-Web dry air filter

Available in multiple finishes

Aggressive engine tone under full throttle

Smooth intake piping eliminates restrictions and improves airflow

Made in Pomona California, USA

Injen Technology Limited Lifetime Warranty

Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

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