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Radium Fuel Injector Pulsation Damper for OEM Rail
- 2015+ STI
Fuel Injector Pulsation Damper
This is the same Fuel Injector Pulsation Damper found in the stock fuel rails for the WRX STI.
The opening and closing of the injectors creates pulses in the fuel rail, which can lead to unstable fuel pressure. This damper should be used (especially with high flow injectors) in order to achieve a safe and consistent rail pressure. The internal diaphragm will absorb oscillations and smooth fuel pressure. This correction can be measured throughout the RPM range and can often help an erratic surging idle.
This OEM quality damper features a 3/8" NPT male thread with impregnated pipe thread paste.
Diaphragm OD: 35mm (1.38")
Overall Height: 38mm (1.5")
Wrench Hex Size: 22mm
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