BMW M54 Pro-Series Turbo Build Kit Engine Code:M54B25 - Flanged Fill Neck for

- Flanged Fill Neck for 1

Re-torque the studs after initial heat cycles for maximum gasket sealing

starting by ditching all plastic bits

Professionally TIG welded and back purged

BMW M54 Pro-Series Turbo Build Kit Engine Code:M54B25 - Flanged Fill Neck forPlease note that any M54 build exceeding 500 horsepower will require the block to be time serted. From Factory, BMW M54 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. This package is custom assembled to prepare your BMW M54 internals for turbocharged applications,