are engineered for extreme horsepower and high-RPM applications in BMW M52 engines equipped with 135mm rods

and properly resurfaced

which is EDM drilled to accommodate safety wire for a secure fit in all conditions

This makes them an ideal choice for both racing enthusiasts and those seeking reliable performance in daily drivers

These coatings provide a micro-seal for fluids against the head and block surface

BMW S54 Turbo Build Kit Kit:Pro-Xtreme are engineered for extreme horsepowerFrom Factory, BMW S54 Engines are not equipped to safely or reliably push more than 400HP or any excessive boost applications. For those looking to liven up this daily driver with a turbo conversion, 5150 is introducing the tested, Pro Series Turbo Build Kit, an all inclusive arsenal of internals custom assembled to prepare your S54 engine for high horsepower, turbocharged performance. A Kit for Every Build and Budget There is no one size fits all,