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Feuling Oil Pump Pressure Relief Springs
Feuling Oil Pump Pressure Relief Springs provides increased oil pump pop-off pressure in comparison with the stock spring. By doing this, the bypass port's oil flow is corrected and seat pressure and total pop off pressure are raised.
Note: Feuling recommends bench testing with the Feuling cam support plate pressure test tool, 566117, to set pop-off pressure to your preference and to ensure correct valve seal and valve operation.
Compatibility: 99-17 Twin Cam (NU)