Subaru WRX STI EJ20 & EJ25 Harmonic Vibration Damper Fluidampr

Harmonic vibration damper for the crankshaft suitable for all Subaru EJ20 and EJ25 engines.

The stock damper only has a rubber compound which is ONLY designed for a stock engine. The harmonic vibration damper has a GEL filling and eliminates ALL negative vibrations that occur on the entire crankshaft drive over the entire RPM range!

Especially with tuned engines, where a different crankshaft, piston or conrod are installed, the standard damper should be replaced by the Fluidampr. Otherwise there is even a risk of breaking the crankshaft at high revs!

Further advantages:

• Improved idle even with conversion to single mass flywheel
• Less noise at idle
• Less vibrations in the crankshaft and gearbox side
• Reduction of turbo lag during fast gear changes
• Power increase of up to 10PS possible depending on engine setup

Approval in the SFI series (American standard for racing)