PERRIN boost tubes are CNC mandrel bent from aluminum tubing for better weight reduction. Every boost tube has an over sized beaded end to ensure the hose clamps and couplers stay connected and sealed! We choose to take the smoothest shortest path to get air to and from the intercooler.

Right off the turbo a smooth offset coupler carries the hot side air charge to a perfectly matched 2.25" boost tube. We chose 2.25" tubing for a smoother, cleaner, obstruction free routing while still being large enough to flow more WHP than most turbos can put out. The air charge then is routed through the engine bay next to the battery, and down behind the radiator to the intercooler. The cold side boost tubes are mounted as high as possible in the engine compartment to clear all turbo and intake combinations as it travels to the throttle body through the engine bay.

Features:

• 5 Year Warranty
• 2.25" Boost Tube
• Coolant overflow tank
• Boost Tube Constructed of Mandrel Bent Aluminum
• Boost Tube Finish Wrinkle Powdercoat
• T-Bolt Clamps
• Easy Install
• Couplers are fiberglass fortified with smooth inner walls for long lasting high strength and smooth air flow

Fitment:

• Subaru STI 2008-2014

Notes:

• DOES NOT INCLUDE INTERCOOLER 
• PERRIN Performance warrants to the original purchaser that all PERRIN products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase. Some exclusions apply
• Off Road Use Only
• This boost tube kit is only for use with Perrin front mount intercoolers.
• Picture used for marketing purposes only, actual product may vary.