The BMW N63 is a twin turbo DOHC V8 piston engine which replaced the (naturally aspirated) N62 and has been produced from 2008–present. It was launched in the 2008 BMW X6 xDrive50i,[1] and later the F01 BMW 750i.[2] The location of the intake and exhaust manifolds are reversed compared to a traditional V8. The BMW Motorsport division version of this engine, called S63, debuted in the X5M and X6M and later appeared in the M5 and M6. Alpina also uses a variant of this engine in its B5 BiTurbo, B6 BiTurbo and B7 BiTurbo.[WIKI]
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