Fluidampr Harmonic Balancer Subaru / Scion - 2013-2020 2.0L FA20 X one for each side of

one for each side of the muffler to tailor the sound

The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark

091 Mercedes Benz E550 4Matic V8 4

The DFV components within react quickly and keeps you in control of the car and in contact with the track

without sacrificing performance

Fluidampr Harmonic Balancer Subaru / Scion - 2013-2020 2.0L FA20 X one for each side ofBroad RPM range protection. Reduce risk of crankshaft failure. Reduce wear on critical engine parts. Unleash lost torque & horsepower. No maintenance required. Superior durability. SFI 18. 1 spec. Race proven for over 35 years. Made in USA.