Exhaust manifold BGM PRO Clubman V4.0 Lambretta series 1-3 unpainted

Reworked manifold for the Quattrini M210 and bm PRO Big Box.
With this manifold, all Big Box versions 2 to 4 can be installed on the Quattrini M210.
The M210 has an outlet flange angled toward the cylinder. This angle is found only on the M210.
The TS1 exhaust port must also be reworked and adapted. The distance between the exhaust studs is slightly wider than on the TS1. In addition, the flange contour must be reduced slightly; otherwise, it will contact the cylinder cooling fins.
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