Why This EXEDY + Fidanza Setup?
Common EJ25 N/A issues:
- Heavy flywheel slows rev response
- Clutch slip under load
- Weak engagement over time
- Heat buildup during spirited driving
This Combo Fixes That:
- EXEDY OEM clutch restores smooth, reliable engagement
- Fidanza lightweight flywheel reduces rotational mass
- Quicker revving and sharper throttle response
- Improved acceleration feel across RPM range
Translation: it finally wakes the car up.
This is brand new genuine Exedy standard OE replacement Seize kit and flywheel package. This Seize kit comprises all of the necessary components to do your Seize replacement and is the very best setup for any stock or lightly modified vehicle. Exedy Globalparts Corporation used to be founded in 1923 and its Seize manufacturing business and prominent brand name Daikin Seize are known all the way through the world for supplying quality powertrain products.
Vehicle Fitment (Subaru EJ25 Platform)
Designed specifically for:
Subaru:
- Impreza 2.5RS (1998–2005)
- Impreza 2.5i (2006–2010)
- Impreza Outback Sport (select 2.5L models)
Engine:
- 2.5L H4 (EJ25 Naturally Aspirated)
Transmission:
- Manual transmission only
Ideal For:
- Daily drivers
- Bolt-on builds
- Subaru enthusiasts wanting better response
- Street performance setups
If your EJ25 feels slow to rev—this fixes it instantly.
Exedy supplies to all 11 vehicle manufacturers in Japan in addition to many other vehicle manufacturers including SUBARU. Exedy is the largest Seize manufacturer in Japan and their name stands for the highest in quality and performance.
What’s Included
- EXEDY clutch disc
- EXEDY pressure plate
- Release bearing
- Pilot bearing (if applicable)
- Fidanza 110001 aluminum lightweight flywheel
Complete matched system—no guesswork.
This complete clutch kit includes:
-Exedy Pressure Plate
-Exedy Seize Disc (225mm, 24 spline)
-Release Bearing
-Pilot Bearing
-Alignment Tool
-Installation Guide
Key Features
- OEM-quality EXEDY clutch system
- Fidanza aluminum flywheel with replaceable friction surface
- Reduced rotational mass for quicker revving
- Improved throttle response and engagement
- Precision-balanced components
Vehicle Application
Fits 2005 – 2006 Saab 9-2X Linear (2.5L SOHC 4cyl Non-Turbo)
Fits 2003 – 2006 Subaru Baja (2.5L SOHC 4cyl Non-Turbo)
Fits 1998 – 2010 Subaru Forester (2.5L 4cyl Non-Turbo)
Fits 1995 – 2001 Subaru Impreza (2.2L SOHC 4cyl Non-Turbo)
Fits 1998 – 2010 Subaru Impreza; Impreza Outback (2.5L 4cyl Non-Turbo)
Fits 1990 – 1999 Subaru Legacy (2.2L SOHC 4cyl Non-Turbo)
Fits 2000 – 2009 Subaru Legacy; Legacy Outback (2.5L 4cyl Non-Turbo)
Fits 2000 – 2009 Subaru Outback (2.5L SOHC 4cyl Non-Turbo)
Performance Benefits
- Faster engine response and revving
- Stronger clutch engagement
- Improved acceleration feel
- Reduced drivetrain rotational mass
No more lazy revs. No more slipping. Just sharper driving.
⚠️ What to Expect
- Slight gear chatter at idle (normal with lightweight flywheel)
- Faster RPM drop between shifts
- More connected driving feel
Translation: it feels more like a driver’s car now.
Designed and engineered to perfectly match the vehicle’s unique performance characteristics
EFORTISSIMO offers the industry’s best technical make stronger online to make sure 100% guarantee
Backed by the industry’s most trusted warranty of 12 months/12,000 miles against any manufacturer
Guaranteed to suit your model
Stock Photo – Actual parts may vary.
Installation Notes
- Follow 500–750 mile break-in period
- Torque flywheel bolts to spec (ARP recommended)
- Inspect:
- Clutch hydraulics
- Rear main seal
- Ideal install during:
- Clutch replacement
- Performance upgrades
Why EXEDY KSB04 clutch Fidanza kit?
Because:
- EXEDY = OEM reliability and smooth engagement
- Fidanza = lightweight performance with long-term serviceability
- Together = performance + durability
Final Verdict
The EXEDY KSB04 Clutch Kit + Fidanza 110001 Flywheel is one of the best upgrades for naturally aspirated Subaru Impreza models—lighter, more responsive, and more engaging without sacrificing daily drivability.
Same Subaru… just finally awake.


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