Perrin Performance
Made from 321 stainless steel with 1/2-inch flanges, the Perrin up-pipe is still one of the best and first ways to increase the power and throttle response on your Subaru.
MSRP: $199.99

Endless USA
RF-650 Brake Fluid
There are only two brake fluids used in Formula 1 and the Endless RF-650 is one of them. It is also used in American Le Mans, WRC, and is factory equipment on all Porsche GT3 Cup Cars, yet the same formula is still available for the end user desiring the highest-performing brake fluid. Within the race conditions, where the braking temperatures are extremely high, the RF-650 maintains stable and consistent performance. It is recognized as the highest-spec brake fluid around the world with better performance and a longer shelf-life than the competition.
MSRP: $30 per 1/2-liter bottle

Cosworth USA
Billet Timing Belt Guide
The original sheet metal timing belt guide can flex from belt deflection when subjected to extreme rpm causing the timing belt to skip one or more teeth on the crankshaft sprocket. The Cosworth billet timing belt guide was developed to control this problem and is machined from solid aluminum with a hard anodized finish.
MSRP: $64

Cosworth USA
High-Performance Head Gaskets
Cosworth high-performance head gaskets are engineered to seal in power under the most demanding conditions. Constructed from stainless steel with a folded stopper layer, each application features superior sealing, compared to conventional multi-layer steel gaskets. Additionally, Cosworth high-performance head gaskets are manufactured from pre-coated die cut stainless steel, resulting in uniform coating distribution and consistent shape.
MSRP: $89

DC Sports Up-Pipe
DC Sports competition pipes delete the catalytic converter to eliminate restriction in the exhaust path and are dyno-tuned to deliver incredible performance gains for your factory turbocharged vehicle.
MSRP: $189

Manley Performance
Stainless Steel Valves
Manley Performance has developed special stainless steel valves for Subaru WRX and STI applications, including Race Master Series (32mm head diameter, 6mm stem) and Extreme Duty exhaust valves (32mm and 33mm head diameters, 5.96mm stem). For improved air/fuel flow, Manley's Race Flo valves, which feature an undercut stem, are the answer. They are offered in 36mm and 37mm head diameters, with a 6mm stem. All Manley valves are swirl polished and fully machined, plus they have chrome stems and hard tips.
MSRP: $160 per set

Cobb Tuning
SF Airbox
The Cobb Tuning SF airbox was designed to capture the cool air supplied to the SF intake through the factory intake snorkel.
MSRP: $125

Cobb Tuning
Stainless Steel Heat Shield
The Cobb Tuning stainless steel heat shield is an in-house designed replacement for the factory turbo heat shield.
MSRP: $50

Auto Timer, Black With Blue LED
The A'PEXi auto timer allows the vehicle to idle for a preset amount of time after the ignition key has been removed. In turbocharged vehicles this prevents hot oil in the engine from choking up in the lines. Hard driving can raise engine oil temperatures to dangerously high levels. Proper cooldown is essential for a healthy turbo and engine.
MSRP: $139

Signal Auto
Radiator Cooling Panel
The radiator cooling panel helps keep air directed toward the radiator, which helps cooling efficiency. The attractive brushed-aluminum design is lightweight and attractive for engine bay dress up.
MSRP: $98

Power intake
The Power intake is the premiere air filter designed to create pure horsepower. The new funnel design, element material, and airflow channeling characteristics make the power intake one of the most efficient air cleaners on the market today.
MSRP: $150

Aluminum Induction Box
The A'PEXi aluminum induction box effectively shields the intake filter element from the power-robbing heat caused by turbocharged engines and extreme underhood conditions.
MSRP: $179