BMW M6 third generation revealed in two door coupe and cabriolet variants

The patented cross-bank exhaust manifold, first introduced in the S63 engine of the X5 M is also employed in the S63T�. This exhaust manifold is a special 8-into-4 setup that combines the exhaust from two cylinders (on opposite banks) that are 360? of crankshaft rotation apart from each other. Each of the eight runners is of identical length to ensure perfectly regular timing of exhaust gas pulses.

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