Thermostat replacement ?
http://www.mphparts.com/mm5/merchant...t_Code=09-1014
but seeing as your in Ontario I'd probably go with at least a 180 t-stat
Be careful about purging the air from the coolant when you refill the system. The hypertech came with detailed instructions on how to do it. Basically take your time and make sure all the air bubbles are out.

