The legendary S85 V10 5-liter engine from BMW was pulled out of production with the E60 M5 and E63 M6 but cars fitted with this engine are still running around causing goosebumps all over the world.
Fitting an aftermarket exhaust to such beasts usually means all hell breaks loose after a couple of minutes, once all 10 cylinders start roaring. Such an exhaust was fitted to the M5 showcased below.
It comes from Mosselman Performance and it arrived with a couple of tweaks and tricks up its sleeve too. The car now has 54 extra HP and 56 extra Nm of torque. That means that the output of the car is now somewhere around 561 HP and 576 Nm (425 lb-ft) of torque.
With such numbers even the current M5 might be trembling in front of it, not necessarily in case of a drag race but on a proper track.
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