Doing EGR tune on an 09 cm871 and can't break the 2 10m bolts loose holding the exhaust tube on top of EGR. Any suggestions would be welcome.
50/50 mix of dextron 3 and acetone.
Likely you will be obligated to remove the EGR valve if you break one of them off (happens very often), drill out the hole, and use a longer screw, lock washer, and nut to replace it.