B58 Gen 1 Stage 1 Bundle What sets Nostrum apart: Stage 1 injectors flow 35% more than stock 63% more HPFP flow than stock Direct fit, no harness or spacers required Comprehensive install solution - evreything you need is in the box! Ethanol compatible OEM equivalent... MSRP: $3,798.00 Was: Now: $3,698.00