Here is a side by side comparison of the stock thermostat housing vs the Billet version I purchased. Look at how much better it flows and it looks better as well. I paid $109 from Granatelli direct.
Here is a video of the install - https://photos.google.com/share/AF1...?key=Uzh5V3gxMXFxNjhndXA4RzQ2QmxqTFVMSElKZlRR
It has not gone over 185. This is my first mod. For those that dont know me, do the search. At 414 miles my TH took a dump and the motor failed. Then FCA tried to void my warranty claiming I modified the motor but I did not even have time to change the oil. In the end I was told to change dealers and the new dealer did great work. Now after 6 months and 1500 miles I am finally trying small things out