MMR Oil temperature and pressure adaptor for BMW N55 & S55 The MMR Performance billet temp adaptor is a helpful addition to BMW's N54, N55 and S55 engines for those wishing to run an auxiliary oil pressure or oil temperature gauge. Replacing the plug found on the oil cooler thermostat assembly with a 1/8NPT gauge adaptor couldn't be simpler! Add an oil pressure or temperature gauge with our 1/8NPT gauge adaptor. The MMR adaptor replaces the plug that can be found on the oil cooler thermostat assembly with a 1/8NPT gauge adaptor, making a neat job of installing your sensor. Manufactured from T6061 billet aluminium, our billet adaptor for the BMW N54, N55 and S55 engines offers a high-quality aesthetic update. Our adaptor is anodised in our trademark MMR deep gloss black for a beautiful finish. This makes a great compliment to our oil thermostat cover set, which can be ordered with or without this adaptor - a must-have for those that like their engine bay looking at its best. Features Highly recommended, affordable modification for any hard-driven cars used on track, or that have an increased power. Anodised in the proprietary gloss black MMR finish for durability. Machined from aircraft grade T-6061 aluminium. Fitting Information Installation of the MMR oil temperature and pressure adaptor is relatively easy to install into the OE oil thermostat housing found on the N54, N55 and S55 engines. Vehicle fitment. Series 1-Series, 2-Series, 3-Series 4-Series Chassis code E82 E88 E90 E91 E92 E93 F20 F21 F22 F23 F30 F31 F32 F33 F80 F82 F87 Model year 2008 - 2020 Model variant M135i M235i 335i 435i M2C M3 M4 Engine code N54 N55 S55