Perrin Subaru WRX (02-07) & STI (04-07) Intercooler Core & Piping Kit

Swap out yPerrin's overheated factory top mount intercooler for the PERRIN Front Mount Intercooler to get the most out of yPerrin's turbocharged STI. Add power and a new bold look all in one.

Intercooler Core

The most important part of any intercooler system is the core. The core cools the charged air on the way to the engine. The factory Subaru tube and fin intercooler was designed to be easy to manufacture, but is not good for performance.

Perrin's testing has shown the optimum core design is the 3/8" bar and plate style that has a 3/8" charge air and ambient air path, instead of the common 1/4" size. The PERRIN bar and plate core design is much more durable than tube and fin with the ability to withstand rocks and other debris, which may enter the scoop. The PERRIN intercooler core is 28" long x 9.25" tall x 3.5" deep with a volume of 906.5 cu-in. giving the PERRIN Intercooler the best overall design for cooling and pressure drop!

Intercooler Support Beams

Perrin's intercooler support beam is constructed from boxed steel and powder coated black. Competitors use inexpensive aluminum bumper beams which save a little weight but are easily destroyed in a collision.

Finish

Every PERRIN intercooler is powder coated to further protect yPerrin's intercooler from the elements making it look awesome for years to come. Perrin's intercoolers come in two finish options, a bright silver or stealth black powder coat.

Cast End Tanks

The PERRIN designed end tanks control for near perfect dispersal of hot air across the intercooler core. By eliminating any 90 degree corners adding a smooth, and gradual taper from top to bottom turbulence is eliminated. Each end tank incorporates an innovative mounting tab to secure the core to the mounting beam.

Boost Tubes

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.

Clamps

The clamps included with the PERRIN FMIC are standard on all PERRIN intercooler kits. They are designed for uniform clamping at all points around the band. Never worry about having to re-tighten down the road, plus each PERRIN clamp is made in the USA and has the torque spec engraved on each one.

Coolant Reservoir

The PERRIN Front Mount Intercooler kit includes a PERRIN Coolant Overflow Tank. It adds clearance for better boost tube routing, holds more coolant than previous designs and uses the OEM tank cap for a great seal! The PERRIN Coolant Overflow Tank is protected from the elements by a black texture powder coating.

Pressure Testing

PERRIN is one of the only intercooler manufactures who pressure tests every intercooler. We pressurize every intercooler to 50 psi. on Perrin's special jigs. This ensures you never get a core with a leak! Even the slightest leak can cause yPerrin's vehicle to lose power, literally bleeding turbo boost pressure out the intercooler.

Weight

The PERRIN Front Mount Intercooler kit only adds 9lbs of weight! If you take all the factory pieces you remove and compare them to the PERRIN parts you are installing, you will find you only added 9lbs!

Logo Stencils

Included with Perrin's front mount intercooler is a free PERRIN logged intercooler stencil. Use the stencil to easily paint the PERRIN logo across the front of yPerrin's intercooler. Simply peel, stick, paint, and remove.

FITMENT

Subaru STI 2004-2005 (Must delete fog lights)

Subaru STI 2006-2007 (Can also keep fog lights)

Subaru WRX 2002-2005 (Must delete fog lights)

Subaru WRX 2006-2007 (Can also keep fog lights)