Calibra rally tuner?
Discussion
Hope this is the good spot for my question 
A mate told me that there is a British Motorsports company that reworks the 4x4 drivetrain of the Opel/Vauxhall Calibra for rally purposes so that the supposedly weak transfer box doesn't spontaneously grenade when the car is driven hard. Can't readily remember the name but I'm hoping someone knows what I'm talking about? If so what do they charge?
Not sure if this is it but they did a RWD Calibra once:
http://www.btrprep.com/btr-history
A mate told me that there is a British Motorsports company that reworks the 4x4 drivetrain of the Opel/Vauxhall Calibra for rally purposes so that the supposedly weak transfer box doesn't spontaneously grenade when the car is driven hard. Can't readily remember the name but I'm hoping someone knows what I'm talking about? If so what do they charge?
Not sure if this is it but they did a RWD Calibra once:
http://www.btrprep.com/btr-history
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