According to what I've found, MIG is out of business.
http://www.exoticsportbike.com/mig_exhaust.htm
When I attempt to go to
www.MIG.fr, it's no longer available.
From site:
Mig Exhaust is at the top of the list for motorcycle exhaust manufacturers. Since its creation Mig Exhaust has invested in the high tech production tools to ensure the best quality possible. Mig Exhaust believes in bringing the latest technology to the motorcycle exhaust market using everything they learned in racing. This is why Mig maintains its presence in competition at the highest level in Endurance and Grand Prix at the same time!
Mig Exhaust draw on the technology and experience acquired by the company on the world's circuits: racing design and the best power/weight ratio. Today Mig Exhaust is the leader in the domestic market and is distributed in 32 countries. Mig Exhaust was the first manufacturer to have and market a carbon silencer and the first one to bring the High Mount exhaust to the market.