MMR Oil filter housing for BMW N54, N55 & S55 The MMR Performance oil filter housing for BMW N20, N52, N54, N55, S55 engines is beautifully over-engineered in customary MMR fashion to give an exquisite feel and exceptional product experience. This direct replacement housing replaces the cheap plastic oil filter housing which is fragile and often cracks, leading to oil leaks. An integrated pressure control oil bypass is built into the MMR housing. BMW equip their cars with a plastic oil filter housing which is fragile and is often cracked when removing and replacing, which in turn can result in oil leaks. This beautiful billet filter housing will ensure that you'll never again have the problem of these 'weeping' oil leaks from the standard part. Each housing starts life as a solid billet of 6061 aerospace-grade aluminium. It's meticulously machined from this billet with the latest CNC 5-axis technology, before being polished, then gloss-anodised in gloss black to stay beautiful year after year. The finished product is not only light but also extremely durable. And it's not just about the looks. An integrated pressure control oil bypass is built into the MMR housing, meaning that there is no need to transfer OE plastic bypass valve from OE filter housing to MMR filter housing - many people have broken these valves moving them from OE to other aftermarket housings! Features Crafted from a solid billet of 6061 aerospace-grade aluminium. Integrated pressure control oil bypass is built into the MMR housing. The finished product is not only light but also extremely durable. Full OE replacement no modifications required. The kit is complete with everything you need. Additional Information Please note if the part is under excessive heat for prolonged periods of time, it can affect the overall finish which is unavoidable with anodised aluminium products, which does not affect the function of the part. Fitting Information Fitting is straightforward and best done in conjunction with an oil and filter change. Just remove the factory housing, fit the replacement MMR unit which comes with a factory spec O-Ring included, and fit back in place. Vehicle Fitment Fitment for all BM Ws with N20, N52, N54, N55 & S55 engines.