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)