![Mugen’s Drake Compares The OS Speed B21AD & B2103 Engines [VIDEO]](https://www.rccaraction.com/wp-content/uploads/2019/05/Mugens-Drake-Compares-The-OS-Speed-B21AD-B2103-Engines-640x300.jpg)
From Mugen:
Adam Drake from Mugen Seiki Racing compares the OS Speed B21AD and B2103 Type S and Type R engines.
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