Subaru Corporation Genuine Parts (669/669)

Roger Clark Motorsport (126/126)

Mishimoto™ - Aluminum Radiator, Performance Radiator, Intercooler Specialist (56/56)

Cosworth (33/33)

Manley Performance (27/27)

4turbo - inspired by competition (3/3)

ACL - Performance Engine Bearings (18/18)

Aeroflow Performance (1/1)

Aeromotive, Inc – Serious Fuel Systems (1/1)

AMS Performance (4/4)

A'PEXi - Find your driving fun (1/1)

ARP - Automotive Racing Products (20/20)

Arrow Precision Engineering Ltd (1/1)

ATI Performance Products, Inc (1/1)

Beru (1/1)

Blitz Co., Ltd. (1/1)

Borg Warner (1/1)

Bridgeway (1/1)

Clevite Bearings (2/2)

Cobb Tuning (3/3)

Cometic Gasket. Inc. (3/3)

Company23 (4/4)

Continental Contitech (2/2)

CP Pistons (1/1)

CUSCO® Progressive Equipment (2/2)

Darton Sleeves (3/3)

Davies Craig - World's best auto cooling (4/4)

DeatschWerks, LLC (5/5)

DEI - Design Engineering, Inc.: Heat & Sound Insulation Products (14/14)

Denso Corporation (1/1)

ETS - Extreme Turbo Systems (2/2)

Ferrea - Racing Engine Valves (5/5)

Forge Motorsport (1/1)

Garrett - Turbo By Garrett (3/3)

HKS Co., Ltd. Performance Automotive Products (10/10)

IAG Performance (13/13)

IHI (5/5)

Injector Dynamics (4/4)

Invidia - Exhaust, Manifolds, Race Catalysts (10/10)

K1 (1/1)

Kelford Cams (2/2)

King Racing High Performance Bearings (4/4)

Koyo (1/1)

Mahle Performance (1/1)

MG Motorsport (1/1)

Milltek Sport (1/1)

Mitsubishi Turbocharger (4/4)

Mitsuboshi (1/1)

NGK Spark Plug (14/14)

Outfront Motorsports Inc. (1/1)

Perrin Performance (1/1)

Samco Sport (22/22)

STI - Subaru Tecnica International (11/11)

Subaru Boxer Diesel (1/1)

TiAL Sport (4/4)

Turbosmart - Manufacturer of turbo performance products (9/9)

Walbro (2/2)

Wiseco Manufactures High Performance Forged Pistons (5/5)