Air and Fuel› Air Cleaners, Filters, Intakes and Components

Cobb

Redline Carbon Fiber Intake

$875.00

SKU: COBB725350

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Cobb Redline Carbon Fiber Intake seamlessly blends performance and aesthetics for the 2015-2021 Subaru WRX STI. The system incorporates a 35% larger pre-oiled air filter, a black anodized billet aluminum adapter for the MAF housing, and a wire-reinforced black silicone coupler. For increased airflow and a more pronounced intake sound, a second billet plate can be removed from the fender side of the airbox. The Mass Air Flow (MAF) sensor housing features a custom conical air filter, a CFD-designed velocity stack, and an airflow straightener grid to ensure precise readings and minimize turbulence. The Redline Carbon Fiber Intake is compatible with existing COBB Off The Shelf (OTS) Maps that support the standard SF Intake, including Stage 1+SF and Stage 3 OTS Maps for 2015-2021 STIs. For a complete list of compatible maps, consult the COBB website's Maps Section. Note that this intake system will not fit with the COBB Radiator Shroud.

MIA's Description

The Cobb Tuning Redline Carbon Fiber Intake is an engine air intake system designed for the 2015-2021 Subaru WRX STI. It features a carbon fiber airbox lid with low thermal conductivity to reduce heat soak and a polished aluminum intake tube. The intake includes a high-flow cone filter and retains the MAF sensor for accurate air mass measurement.

Fitment

Fitment Guaranteed

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

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Specifications

BrandCobb
Part NumberCOBB725350
CategoryAir and Fuel

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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