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Air and Fuel Air and Fuel Cooling Systems and Components

GrimmSpeed

27"x11"x4" Cross Flow Front Mount Intercooler Kit

$1,802.90 $1,639.00 Save $163.90

SKU: GRM090237

In Stock
In Stock
Ships by Jul 31
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The GrimmSpeed Front Mount Intercooler Kit is engineered for the 2015-2021 Subaru STI, aiming to maintain a balance of low pressure drop and high temperature rejection for turbocharged engines. The kit utilizes a 27”x11”x4” Cross Flow Core with a durable Bar and Plate construction, complemented by cast aluminum end tanks designed for optimal flow distribution and minimal pressure drop. Robust steel mounting brackets ensure a secure fit with minimal movement and maximum adjustability. The intercooler piping is constructed from thick .090” wall, 2.5” inside diameter 6061 aluminum tubing. This tubing is precisely machine-bent with large radius bends for maximum flow and perfect fitment, featuring bead rolls at each end to secure the included 5-ply silicone couplers. The piping is finished with a durable red or black wrinkle powdercoat, offering protection against corrosion and a matching aesthetic with other GrimmSpeed parts. Installation requires minimal permanent vehicle modification, with only minor adjustments to the OEM undertray and splash guard needed. It is compatible with the factory or GrimmSpeed intake (snorkel removal required for factory intake; GrimmSpeed Intake recommended for maximum performance). The kit retains the factory fog light mounting and OEM bypass valve location, easing installation and allowing the use of most aftermarket BPVs. This intercooler is pressure tested, cleaned, and sealed prior to delivery, ensuring it works correctly out of the box. It is available in Raw Aluminum or Satin Black powdercoat for the core, and the piping comes in Red or Black wrinkle powdercoat. Importantly, no tune is required for installation, with no change in maximum boost or time to spool.

MIA's Description

The GrimmSpeed Front Mount Intercooler Kit is designed for the 2015-2021 Subaru STI. It features a 27"x11"x4" Cross Flow Core with a durable Bar and Plate construction. The end tanks are made of cast aluminum for equal flow distribution, and the kit includes steel mounting brackets for a robust solution. The piping is constructed from thick 6061 aluminum with a .090" wall and 2.5" inside diameter, beadrolled and CNC mandrel-bent with large radius bends for maximum flow.

Fitment

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Specifications

BrandGrimmSpeed
Part NumberGRM090237
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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