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Injen

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

$579.62

SKU: I004 SP1208P

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Injen Technology SP1208 performance air intake system is designed for the 2018-2021 Subaru WRX STI with the H4-2.5L Turbo Engine. This intake system is a direct replacement for the factory airbox and provides dyno proven gains of up to 26 hp and 24 lb-ft of torque. It features a 3.250in mandrel-bent 6061-T6 aluminum intake tubing, a custom heat shield, and a fully serviceable Injen SuperNano-Web dry air filter.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandInjen
Part NumberI004 SP1208P

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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