Close-up of high-performance clutch kit and pressure plate from Stage 1 package
Upgraded shifter bushings and linkage for precise STI shifting
Reinforced transmission mount from Stage 1 drivetrain package
Close-up of high-performance clutch kit and pressure plate from Stage 1 package
Reinforced transmission mount from Stage 1 drivetrain package
Stage 1 drivetrain componen Subaru WRX STI engine bay and transmission
Complete Stage 1 drivetrain package components for Subaru STI
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Subaru STi 6MT Stage 1 Drivetrain Package

COBB
COBB215X01
Shifters
20+ Units In Stock - Ships Next Business Day
$ 285.00
$ 285.00

SKU: 215X01 


Subaru STI 6MT Stage 1 Drivetrain Package

The 215X01 Stage 1 Drivetrain Package is the best entry-level upgrade for Subaru WRX STI owners with 6-speed manual transmissions seeking smoother shifting and improved reliability under moderate power increases. This complete kit combines proven components to address common weak points in the STI drivetrain while maintaining daily drivability and street performance.

Key Features

  • Smooth Shifting: Upgraded shifter bushings and linkage for precise, positive gear engagement
  • Clutch Performance: High-quality pressure plate and disc for increased torque capacity
  • Driveline Reliability: Reinforced mounts and components reduce movement and wear
  • Bolt-On Design: Direct replacement parts for straightforward installation

Specifications

Specification Detail
Part Number 215X01
Stage Level Stage 1
Transmission 6-Speed Manual
Power Rating Up to ~400-450 HP
Components Clutch Kit, Shifter Bushings, Mounts, Hardware
Country of Origin United States / Global Sourcing
Warranty Limited

Product Notes

  • Complete Stage 1 package – designed for moderate power increases and daily driving

Installation Notes

  • Estimated time: 8-12 hours, advanced difficulty, transmission removal required
  • Professional installation recommended – proper clutch break-in procedure essential

This Part Fits

Year Make Model Notes
2004-2021 Subaru Impreza WRX STI 6MT Models

Why Choose Stage 1 Drivetrain Package?

  • Proven combination of components for reliable power handling and smooth operation
  • Addresses common STI shifter and clutch issues with quality upgrades
  • Ideal foundation for future power increases with balanced performance

Frequently Asked Questions

  • Q: Does it include flywheel?
    A: Typically lightweight flywheel included – confirm kit contents.
  • Q: Will it make shifting harder?
    A: No, upgraded bushings improve precision while maintaining street feel.
  • Q: Is pedal feel changed?
    A: Slightly heavier clutch engagement for better modulation.
  • Q: Does it require break-in?
    A: Yes, follow manufacturer clutch break-in procedure for longevity.

Shipping & Handling

  • Method: UPS/FedEx Ground
  • Availability: In stock, ships same or next business day
  • Packaging: Official protective box

Request For Information

Have questions about Subaru STi 6MT Stage 1 Drivetrain Package? Fill out the form below and we'll get back to you by the next business day.
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