Competition Clutch 15030-1620 Stage 4 6Puck Ceramic Kit for 04-21 Subaru WRX/STi

Vehicle Fitment

• 2004-2014 Subaru Impreza WRX/STI (2.5L Turbo I4, 5-speed or 6-speed manual)
• 2015-2021 Subaru WRX STI (2.5L Turbo I4, 6-speed manual)

Fitment Notes

• Stage 4 clutch kit designed for high-power Subaru 2.5L Turbo models with manual transmissions.
• Flywheel **not included**; must use compatible flywheel for correct installation.
• Requires proper break-in: 300-mile minimum before heavy load or track use.
• Not intended for stock power-only builds; best suited for tuned or modified applications.

Features

• Performance pressure plate with up to ~250% increase in torque capacity over OEM.
• 6-puck sprung ceramic disc for sharp engagement and high load durability.
• Includes alignment tool, throw-out bearing and pilot bushing where applicable.
• Balanced assembly designed for high-revving turbo Subaru engines.
• Ideal for drifting, rally, road-race or high-boost street builds.

Specifications

• Part Number: 15030-1620
• Kit Type: Stage 4 clutch kit (6-puck ceramic disc, pressure plate, bearings, alignment tool)
• Disc Style: Sprung hub, ceramic buttons
• Torque Capacity: Rated around 550 ft-lbs wheel torque in correct setup
• Flywheel: Not included

Included Components

• 1x Competition Clutch performance pressure plate
• 1x 6-puck ceramic clutch disc (sprung hub)
• 1x Alignment tool
• 1x Throw-out bearing (where required)
• 1x Pilot bearing/bushing (where required)

Product Description

The Competition Clutch 15030-1620 Stage 4 Kit is engineered for high-performance Subaru 2.5L Turbo models from 2004 through 2021 (Impreza WRX/STI, WRX STI). With its 6-puck ceramic disc and performance pressure plate, this kit provides substantial gains in torque capacity (up to ~250%) and is built to handle the demands of high-boost turbo tuning and motorsport usage.

Installation requires a proper flywheel (not included) and careful break-in to ensure long life and reliable engagement. Best suited for modified builds rather than stock applications, it is ideal for drivers who demand aggressive clutch feel, strong holding power and performance under load. Ensure compatibility with your bellhousing, transmission and driveline before installing.