- ARP Custom Age 625+ Head Stud Kit**- Genuine BMW Head Gasket- CP x 5150 Pro-Xtreme Forged Piston Set    - Heavy Duty Piston Pins    - Optional: Add Skirt Coating or Dome Coating- CP-Carrillo x 5150 Pro-Xtreme Forged Connecting Rod Set- 5150 High Performance Main Bearing Set

Aggressive driving results in increased engine temperatures necessitating an effective solution for keeping your straight six cool

the S54's cylinder bores may be too thin to withstand substantial boost

-Stainless steel mounting hardware and hose clamps

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Link Engine Management G5 Voodoo Neo 4 BM237-HA - ARP Custom Age 625+152 5000 G5 Voodoo is Link's premium platform for advanced engines that require direct injection, high injector, input or output counts, or advanced processing and communication. We recommend G5 if you need direct injection*, have over 8 injectors, are after extra inputs and outputs, or for new features like GPS and Wi Fi. *Direct injection requires an external OEM or aftermarket driver box. Inputs Outputs Control any engine with 2 cylinders, all the