180* should help compared to the factory 195 unit...when I was scanning the car the temp of the motor actually sat anywhere from 10-20* above rated temp...when the silver N/A car I had was stock...it would get pretty toasty, think like 220-230* sitting. Even people that don't recommend the 160* don't realize the car really never gets under 170* once it is warmed up...cruising on the highway in the winter that is...think it was like single digit temps. My headter worked just fine too. Sitting in traffic on a hot day with the A/C it would still get close to 190*. 160's aren't as bad as they are cracked up to be but the 180* is the most practical choice.
