Keep your engine running strong for years to come with the BMS N54 or N55 Oil Catch Can. While the N54 and N55 engines are great for performance, they do have one serious drawback - they blow oil into the intercooler, and charge pipe. This oil degrades engine performance and efficiency, but by installing the BMS N54/N55 Oil Catch can you can catch the oil before it gets into parts of your engine it shouldn't be in. Keep your turbo engine happy and increase longevity with the BMS N54/N55 Oil Catch can!
THIS RACING PART IS ONLY TO BE USED WITH COMPETITION RACE VEHICLES OPERATED ON A CLOSED COURSE
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BMS's catch can was specifically designed for the N54 and N55 turbo motors, where competitor other catch cans are simply adapted to work with these engines. It features 100% CNC machining with no welds for a precision fit and long life. To ensure there is no excessive crankcase pressure the piping included exceeds the diameter of the OEM PCV piping.
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The can is a direct addition to the factory PCV system and does not require any permanent or unsightly modifications to your engine bay
Why Should I Get a BMS Catch Can?
The primary reason one would add the BMS N54/N55 Oil Catch Can to their vehicle is the reduction/elimination of blow-by. Blow-by is caused when a combustion in the engine forces fuel, air, and moisture past the piston rings and into the crankcase. From there, the blow-by is released by the crank case vents and back into the intake pipe. This occurs on all engines, but is worse on turbo engines due to higher pressure in the combustion chamber. If nothing is done, this excess gunk will build up in the valvetrain, turbo, intercooler, and intercooler piping, robbing your engine of performance over time.
Why is this bad for my N54 Engine?
Oil will coat the intercooler piping and fins which reduces the cooling efficiency which is important for performance in turbo applications
Blow-by buildup in the intake pipe can cause disruptions in airflow
Blow-by buildup in the turbo diminishes the life and efficiency of the turbo
Blow-by can seep into couplers and boost tubes causing them to pop off during high boost
Installation and Removal
Installation takes around 20 minutes, and included with the catch cans are everything you need to install. We recommend emptying the can every 3-6 months, to do this simply unscrew the bottom portion.