BMW G8x M3, M4 & G2x M340i, M440i Stand Alone Auxiliary Fuel System 230i (F22) The bolts are the spacer

The bolts are the spacer width longer than the factory bolts

BMW 328i Xdrive (2009 to 2013)

(1) N55 billet adapter nipple

To maintain reliability under demanding driving conditions

Looks great under the hood

BMW G8x M3, M4 & G2x M340i, M440i Stand Alone Auxiliary Fuel System 230i (F22) The bolts are the spacerThe Precision Raceworks BMW G8x M3, M4 & G2x M340i, M440i Stand Alone Auxiliary Fuel System is the highest performing and most stable low pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection! Since direct injection came out for BMW, enthusiasts have been adding port injection. With this came the need to upgrade the low pressure fuel system to keep up.