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Subaru STI 2008-2021
The Perrin Turbo Inlet Hose is a straightforward bolt-on upgrade designed for easy installation with basic hand tools
Shop now at Subimods to enhance your Subaru’s look and performance with trusted aftermarket parts
while the exhaust valves are made from XH-426 stainless steel
Durable Construction: Made from high-quality Delrin
Perrin Performance Boost Tube Box w/ Red Boost Tubes and Black Couplers 2015-2021 WRX YMM_1990_Legacy Subaru STI 2008-2021Perrin Performance Boost Tube Box w Red Boost Tubes and Black Couplers 2015 2021 WRX 2. 25" Aluminum Tubing Boost Tube Kit Overview The Perrin Performance Boost Tube Box is a precision engineered upgrade designed specifically for the 2015 2021 Subaru WRX equipped with a Perrin front mount intercooler core. This kit replaces the restrictive OEM boost tubes with CNC mandrel bent aluminum tubing, featuring a smooth 2. 25" diameter for optimal airflow.
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