Allows for higher fuel pressure (5.0 bar)- perfect for higher boost applications. An ECU upgrade will be necessary to run this fuel pressure regulator. We recommend this upgrade for vehicles running K24 or larger turbochargers231_x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.