Air and Fuel› Superchargers, Turbochargers and Components

Parrin

Boost Tube Kit

$1,199.35

SKU: PSP-ITR-400SL-438RD

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Perrin Boost Tube Kit is a performance intercooler piping upgrade designed to improve airflow for 2015-2019 Subaru STI models. This kit features CNC mandrel-bent aluminum tubing, a replacement coolant overflow tank, and a custom washer fluid tank to accommodate the optimized piping path.

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

BrandParrin
Part NumberPSP-ITR-400SL-438RD
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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