Professionally engineered performance for 350 - 525 horsepower applications utilizing 40 - 55 lb/min turbochargers.

The legendary APS front mount intercooler has quickly become the benchmark for all front mount intercooler systems for the Impreza WRX STi. Extremely high flow rates ...

Professionally engineered performance for 500 - 725 horsepower applications utilizing 50 - 75 lb/min turbochargers.

The legendary APS front mount intercooler has quickly become the benchmark for all front mount intercooler systems for the STi. Extremely high flow rates and massive ...

High strength compressor wheel design, ball bearing construction and high nickel content turbine housing means complete reliability to pressure ratios over 3:1 (30 psi!). And since nobody likes to wait, the APS S/R Series turbochargers are designed for fast spool-up to provide crisp turbocharger ...

Ample quantities of 8CM turbine housing are now in stock. To upgrade your turbo to the more powerful 8CM housing simply select the 8cm housing option from the pull down menu. There is NO LONGER a $100 fee for the upgrade to 8CM housing. 01/08/07

The FP...

The FPRed model for the STi has a flow rating of 950cfm or about 65lb/min. It features a large TD06 turbine wheel and is generally run in the larger 8cm Turbine housing for max power.

The 3" inlet of the Red model means that the TGVs will need to be removed from the vehicle to gain...

The addition of a GReddy intercooler is one of the best ways to safely increase horsepower in a turbocharged engine.

By reducing the engine's inlet temperatures, a denser air charge will enter the engine; this can make more horsepower at the same boost level and even more power at...

HKS S-Type intercooler kits are front mount units utilizing either a 600mm X 301mm X 65mm core. The larger core is efficient up to 450HP. All S-Types utilize a multiple loop shape on the outer fins and a straight through design on the inner fins; allow...

This is an excellent replacement turbo for those looking for substantial power gains while maintaining streetability.

The IHI VF-34 Turbo is found on some of the limited production Subaru's such as the v7 WRX STI-RA. This turbo is degined from the VF30 but features a more advanced...

PERRIN Front Mount Intercooler users can now get a more accurate charge temperature reading and run a VTA BOV with no problems!  

Instead of measuring the Mass Air Flow (MAF) and air temperature before the turbocharger, the PERRIN PerformanceTM Blow-Thru boost tube moves th...

The process of compressing incoming air to create boost and power also has a nasty byproduct of heat. Heated air lacks the density to make higher horsepower, increases detonation and forces the ECU to pull timing. All of which reduce the power you are lo...

The process of compressing incoming air to create boost and power also has a nasty byproduct of heat. Heated air lacks the density to make higher horsepower, increases detonation and forces the ECU to pull timing. All of which reduce the power you are lo...

The process of compressing incoming air to create boost and power also has a nasty byproduct of heat.

Heated air lacks the density to make higher horsepower, increases detonation and forces the ECU to pull timing. All of which reduce the power you are looking to create.
...

The process of compressing incoming air to create boost and power also has a nasty byproduct of heat. Heated air lacks the density to make higher horsepower, increases detonation and forces the ECU to pull timing. All of which reduce the power you are lo...

Includes: Turbo, Wastegate, Exhaust Plumbing, Intake System, Fluid Lines and Fittings, Mounting Hardware and Instructions.

Fits: Subaru STi 2004-2007
...

With kits that range in power totals from 250 WHP to more than 600WHP we have any boost junkies needs covered.  We offer a range of turbos to fit a mild 2.0L engine, all the way to a crazy 2.5L wanting to break the 600WHP barrier.

The PERRIN...

We offer a range of turbos to fit a mild 2.0L engine, all the way to a crazy 2.5L wanting to break the 600WHP barrier.

The PERRIN Rotated Turbo kits include everything to bolt your turbo of choice to your properly tuned WRX/STI.  The kits ar...

With kits that range in power totals from 250 WHP to more than 600WHP we have any boost junkies needs covered.  We offer a range of turbos to fit a mild 2.0L engine, all the way to a crazy 2.5L wanting to break the 600WHP barrier.

The PERRIN...

The PERRIN Rotated Turbo kits include everything to bolt your turbo of choice to your properly tuned WRX/STI.  

The kits are designed to bolt to factory exhaust manifolds, and to factory catback exhaust. This allows the use of existing aftermarket headers, and catback exhaust...

The PERRIN Rotated Turbo kits include everything to bolt your turbo of choice to your properly tuned WRX/STI.  

The kits are designed to bolt to factory exhaust manifolds, and to factory catback exhaust. This allows the use of existing aftermarket headers, and catback exhaust...

The PERRIN Rotated Turbo kits include everything to bolt your turbo of choice to your properly tuned WRX/STI.  

The kits are designed to bolt to factory exhaust manifolds, and to factory catback exhaust. This allows the use of existing aftermarket headers, and catback exhaust...

Samco silicon hoses are extremely durable and hand made for best fitment, flow, and strength.

The kit is available in blue, red, and black

Fits: Subaru STi 2004-2005

Samco silicon hoses are extremely durable and hand made for best fitment, flow, and strength.

The kit is available in blue, red, and black.

3pc Kit

Fits: Subaru STi 2004-2007

When massive flow and cooling is needed, the Turbo XS Front Mount Intercooler delivers.

Dwarfing the factory IC core volume by more than 3.3 times, the TurboXS Front Mount Intercooler bar and plate core is larger AND less restrictive at high flow rates resulting in better cooling pe...

TurboXS Rotated Mount Turbo Kit is unrivaled allowing you to bolt a Hybrid T3/T4 or GT Series turbocharger into the Native Compressor and Turbine Housing.

Your end result is more power and flexible turbocharger options from a fast spooling low ...

Bar and Plate Top Mount Intercooler

Fits:

Subaru Impreza WRX STi (04-05)
Subaru Impreza WRX STi (06+)