Just joined - UK North West, looking for advice on modifications, servicing specialists in area.  Eclectic mix of cars inc Maser 3200, 595 Comp and 1997 Mini clubman.  Looking to lightly mod 595, just fitted Bombardone Carbon Edition Exhaust...whilst trying to fix Monza valve off the car...think it is half on and off..any help on how to check measurements of valve movement appreciated.  Also advice on best place to service - refuse to use Mangoletsi who are down the road - terrible service in my experience

Thanks will check them out