Subaru Corporation Genuine Parts (383/383)

Roger Clark Motorsport (83/83)

Subaru Boxer Diesel (50/50)

Mishimoto™ - Aluminum Radiator, Performance Radiator, Intercooler Specialist (30/30)

ACL - Performance Engine Bearings (20/20)

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

AMS Performance (1/1)

ARP - Automotive Racing Products (5/5)

Arrow Precision Engineering Ltd (1/1)

ATI Performance Products, Inc (1/1)

Blitz Co., Ltd. (1/1)

Bridgeway (1/1)

Clevite Bearings (2/2)

Cobb Tuning (1/1)

Company23 (8/8)

Cosworth (18/18)

Darton Sleeves (3/3)

Davies Craig - World's best auto cooling (1/1)

DeatschWerks, LLC (1/1)

DEI - Design Engineering, Inc.: Heat & Sound Insulation Products (12/12)

Denso Corporation (1/1)

ETS - Extreme Turbo Systems (1/1)

Garrett - Turbo By Garrett (3/3)

HKS Co., Ltd. Performance Automotive Products (1/1)

IAG Performance (10/10)

Invidia - Exhaust, Manifolds, Race Catalysts (9/9)

King Racing High Performance Bearings (5/5)

Mahle Performance (1/1)

Manley Performance (5/5)

MG Motorsport (1/1)

Outfront Motorsports Inc. (1/1)

Perrin Performance (1/1)

Samco Sport (10/10)

STI - Subaru Tecnica International (7/7)

TiAL Sport (2/2)

Tomei Powered Inc. (1/1)

Turbosmart - Manufacturer of turbo performance products (3/3)

Walbro (1/1)

Wiseco Manufactures High Performance Forged Pistons (3/3)