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COMPETITION CLUTCH
Stage 5 Rigid - Strip Series 0420 Clutch Kit

This assembly; available with a rigid plate is good for penetrating engagement with higher horsepower applications. This disc complimented by a performance pressure plate provides up to 300% increase in torque capacity. 300 mile break-in recommended with this set-up.

The 0420 Series kit includes a performance pressure plate; a four puck high torque rigid disc with Ceramic buttons; all applicable bearings; and the appropriate alignment tool.

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For: Subaru WRX Sti YR: 2004-2011 Cyl: 4 App: 2.5L Turbo 6-SHPeed
The versatile FX500 System uses either the Power Plus I or Power Plus II Pressure Plate along with a solid center 4,6 or 8 wing (paddle) Ceramic Button disc. The FX500 disc is designed for outstanding holding capacity and rapid heat dissipation. The FX500 ceramic paddle design creates a quick and rapid engagement as well as clutch chatter that is not recommended for the street. Learn More

For: Subaru WRX YR: 2002-2005 Cyl: 4 App: 2.0L Turbo 5-SHPeed
The versatile FX500 System uses either the Power Plus I or Power Plus II Pressure Plate along with a solid center 4,6 or 8 wing (paddle) Ceramic Button disc. The FX500 disc is designed for outstanding holding capacity and rapid heat dissipation. The FX500 ceramic paddle design creates a quick and rapid engagement as well as clutch chatter that is not recommended for the street. Learn More

Cosworths High Flow Intake Systems feature increased diameter; large smooth radius bent aluminum inlet tubes superior flow management coupled with a high flow filter maximum flow performance.
Each includes an integrated heat shield designed to isolate air intake from engine heat delivering cold into engine superior power conversion. filter element is large; conical in shape engineered to dramatically reduce intake restriction resulting in additional power torque.
Specs:
Increase in performance by typically up to 15%
Conical Cosworth blue filter with Cosworth embossed composite cap
Lightweight aluminum mandrel shaped inlet tube maximum airflow
Integrated heat shield cold isolation
Hardware included easy; perfect fit
Reusable filter
Manufactured in USA Learn More

High Pressure Pump
High performance engines require additional pressure because of increased demand placed upon various components within engine. Cosworth High Pressure Subaru EJ20/EJ25 series pump is modified to increase pressure helping to ensure superior lubrication. Each pump is carefully inspected deburred unobstructed flow. Perfect high performance daily Each includes required mounting hardware seals.
High Volume Pump
Increasing volume will help to prevent bearing damage engine failure. Additionally; sustained High use cause starvation at rod main bearings Cosworth High Volume Subaru EJ20/EJ25 series pump utilizes a completely inner outer 12mm rotor to increase volume by 20%. Suggested applications include drag; track and race use. Each includes required mounting hardware seals. Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

Cosworth High Performance engine assemblies the perfect basis your high performance application. Each version gone through countless hours of engineering evaluation to determine best combination of parts build specification; ensuring maximum reliable performance. Each Cosworth High Performance enginembly starts with new select components as foundation of performance build. Every block is thoroughly inspected before cylinders honed to perfection. We then balance rotating assembly that includes either a factory forged crankshaft or Cosworth Billet crank along with Cosworth Forged connecting rods; Cosworth Tri-Metal bearings Cosworth Forged Pistons. motorsport grade parts then professionally assembled by expert engine builders in Cosworth enginembly facility. Each High Performance enginembly includes a complete specification sheet listing critical dimensions along with a serialized plaque. maximum performance; combine with a Cosworth ported Valve Cylinder Head camshaft set.
Subaru EJ25 High Performance Short Block 2.5L
The Cosworth EJ25 is an excellent starting point high performance track applications.
New Subaru EJ25 EJ257 Block
New Subaru EJ25 Forged Crankshaft or Cosworth Billet Crank (79mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (99.5mm) rings
Cosworth Tri-metal bearings
Balanced to within .5 gram
Complete blue-print assembly
Ring set
Bearing clearance checked
Deck height checked
Connecting side clearance checked
Crankshaft float checked
Mitsubishi 4G63 (Evolution VII-IX) High Performance Short Block 2.0L
The Cosworth 2.0L 4G63 is an excellent starting point high performance track applications.
New Mitsubishi 4G63 Evolution Block
New Mitsubishi forged crankshaft (88mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (85mm) rings
Cosworth Tri-metal bearings
Cosworth Heavy Duty main studs
Piston squirt jets
Balanced to within .5 gram
Complete blue-print assembly
Ring set
Bearing clearance checked
Deck height checked
Connecting side clearance checked
Crankshaft float checked
Mitsubishi 4G63 (Evolution VII-IX) High Performance Short Block 2.2L
The Cosworth 4G63 2.2L stroker engine combines perfect bore to stroke ratio; yielding potentially gains in torque while still allowing engine to rotate produce power at higher rpms.
New Mitsubishi 4G63 Evolution Block
New Cosworth Billet Crank (94mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (86mm) rings
Cosworth Tri-metal bearings
Cosworth Heavy Duty main studs
Piston squirt jets
Balanced to within .5 gram
Complete blue-print assembly
Ring g Learn More