-XDI PRE-ORDER 4 WEEKS-
This is a Factory GM AcDelco camshaft with modified DI lobe. The XDI Team Modified the cam to 6.35mm lift instead OEM 5.25mm. This is the maximum possible within the hardened depth area of the OEM camshaft. At 6.25mm leads to 21% more HPFP capacity compared to OEM Hitachi Pump.