Difficult to say as it was fitted at the same time as the L8 ecu , T38, Siemens 83lb injectors , 044 pump, new engine , fans and fuel pump looms and wasted spark ignition, plus custom chip from MSD. It all works very well together. Engine already had group A spec head, 200 wire rung block , balanced bottom end with competiton bearings, Bd10 & Bd12 cams, low comp valve cut out Mahle pistons, T35 hybrid turbo and greys etc.
Keeping it clean isnt to hard as once everything has a good smooth shiny finish its fairly easy to maintain.