This plug and play tuner attaches to sensors in the engine bay and works with your factory DME tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. ARM Motorsports' new N63/N63TU downpipes for the 4.4L V8 Twin-Turbo powered 650i allows you to take your N63/N63TU engine to the next level. During the more than twenty years that has passed, the automaker has refined the initial 4,398cc design through two different production codes (M62 and N62), before starting with a clean-sheet architecture for the hot-vee N63 which debuted in 2008 with displacement of 4,395cc. Two motors that will be at the heart of BMW tuning for some time to come will be the N63 4.4 liter V8 and the S63 which is the M version based on it. An evolution of the naturally aspirated 4.8-litre N62 engine, the N63 and S63 engines had 90-degree ‘V’ cylinder banks, 89.0 mm bores and an 88.3 mm stroke for a capacity of 4395 cc. The BMW N73 is a naturally aspirated V12 petrol engine which replaced the BMW M73 and was produced from 2003–2016. The … Compared with its M73 predecessor, the N73 has dual overhead camshafts, double-VANOS (variable valve timing) and … The N73 was the world's first production V12 engine to use gasoline direct port injection. The future of BMW tuning is going to be based around turbo motors. If you dont have one, we have them for sale as well. It's designed specifically for the N63 and N63tu motors. ARM Motorsports' new N63/N63TU downpipes for the 4.4L V8 Twin-Turbo powered 650i allows you to take your N63/N63TU engine to the next level. The N63 doesn't, so the valve will clog. Stage1 gains on the N63 are up to 40whp range on pump gas and up to 60whp range with the N63tu motor. 1. The BMW N63 and S63 were 4.4-litre V8 petrol engines that had twin turbochargers. Plenty of good reasons that explain why you could be looking for a BMW used engine for sale.The motor might have seized, you might have undergone a nasty automobile accident or the engine is basically too old and requires replacement. Find 2016 BMW 550i xDrive for Sale . N63B44O0 (2008 – 2014) is the base version with the following specs: Power – 408 HP at 5,500-6,400 rpm, 600 Hm of torque at 1,750-4,500 rpm. N63TU JB4 BETA Tuner Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! In the search for fuel economy and prodigious output, BMW's N63 twin-turbo V8 happens to chew through batteries. It was used in the BMW 7 Series and Rolls-Royce Phantom.. The N63 has a thirst for engine oil due to the piston ring design, apparently the N63TU isn't so bad. BMW has been producing a 4.4-liter V8 since 1996. Search from 51 BMW 550i xDrives for sale, including a Certified 2016 BMW 550i xDrive Sedan and a Used 2016 BMW 550i xDrive Sedan. BMW N63 engine modifications and differences.