Short description of the ARMYTRIX valvetronic exhaust.. It works perfect and the sound difference between valves open and closed is insane! Couldn't be happier with it!
High speed fly-bys and drifts coming soon! :-)
I hope you enjoy the video!
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For any info about the exhaust system:
Bmw F87 M2 | Armytrix Exhaust | Loud Sounds | Launch Control | Revs |...| Alex Hardt