RB20/25/26/30 N1 Oil pump
The N1 oil pump has significant improvements over the OEM pump. It flows 15% more oil at the same engine speed, however has the exact same relief pressure. This means you will have higher oil pressure at a given engine speed (and oil viscosity constant) when compared to an OEM oil pump. The OEM pump is only marginally less expensive compared to the N1, and that is the reason we have opted to not even stock or list the OEM pump. We wouldn't install one on any of our builds here, and we don't think you should when this awesome upgrade is only 30$ more than the inferior OEM pump.
Choose to add an oil pump gasket with your purchase of the pump. You'll definitely need it, and because of the complexity of the seal, silicone will NOT work.
In stock part, great service, fast delay, event faster shipping and more than good price!
Will recommand anyone to do buy from boost factory!!