Bosch 4.0 Bar Fuel Pressure Regulator

https://www.ebay.co.uk/itm/Nissan-Micra-K11-UPGRADE-Bosch-4-0-Bar-Fuel-Pressure-Regulator/154138291087?hash=item23e35bab8f:g:LDgAAOSwqCZfKShX

Genuine Bosch 4.0 Bar Fuel Pressure Regulator.

A nice upgrade for a coilpack Nissan Micra K11 if you believe the car is running lean.

On a bog standard Micra K11, this item will give minimal to no gains. This item is more suited to those who have modified their Micra K11 but have NOT remapped it, and so the car can run lean in the high RPM's. Using this regulator can help provide the extra fuel the car needs at the high rpm. If the car has been remapped, then it shouldn't be running lean anyway - that is the point of the remap.

However, a remap for these Micra's tends to be very expensive and so this item provides a budget way to squeeze more power out of a modified Micra that is still on the stock ECU.

This regulator is the standard 14mm and 25mm O-ring fitment, which means it is suitable for a range of cars.