Exhaust setup on pusher 912UL

Questions regarding Toucan “stand alone exhaust system for pusher Rotax 912UL” installed on Powered Parachute:

1. What is the recommeded torque on bolts attaching pipes to exhaust port?  Rotax manual says 106-177 in. lbs.  So maybe 140 in. lbs.? 

2. Does it matter which cylinder the EGT probes are placed nearest to as long as they’re inserted 100 mm from the exhaust ports and there is one probe on each side of my 4 cylinder Rotax 912UL? In other words could one EGT probe be 100mm from cylinder 3 while the other be located 100mm from cylinder 2 as opposed to cylinders 1 & 2?